Claudio Len

Claudio Len

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VIRTUAL LEARNING ENVIRONMENT IN PEDIATRIC RHEUMATOLOGY FOR PEDIATRIC RESIDENTS.

Rev Paul Pediatr 2020 13;38:e2018189. Epub 2020 Jan 13.

Universidade Federal de São Paulo, São Paulo, SP, Brazil.

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http://dx.doi.org/10.1590/1984-0462/2020/38/2018189DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6958534PMC
January 2020

Sleep and restless legs syndrome in female adolescents with idiopathic musculoskeletal pain.

J Pediatr (Rio J) 2019 Nov 20. Epub 2019 Nov 20.

Universidade Federal de São Paulo, Escola Paulista de Medicina, Departamento de Pediatria, Seção de Reumatologia, São Paulo, SP, Brazil.

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http://dx.doi.org/10.1016/j.jped.2019.09.007DOI Listing
November 2019

Translation and validation of the Transition Readiness Assessment Questionnaire (TRAQ).

J Pediatr (Rio J) 2019 Mar - Apr;95(2):180-187. Epub 2018 Feb 16.

University of Southern California, Keck School of Medicine, Children's Hospital Los Angeles, Division of Rheumatology, Los Angeles, United States.

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http://dx.doi.org/10.1016/j.jped.2017.12.013DOI Listing
October 2019

Validation and adaptation of a German screening tool to identify patients at risk of juvenile idiopathic arthritis.

Rheumatol Int 2019 Oct 30. Epub 2019 Oct 30.

Hamburger Centre for Pediatric and Adolescence Rheumatology, Hamburg, Germany.

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http://dx.doi.org/10.1007/s00296-019-04465-8DOI Listing
October 2019

Association between demyelinating disease and autoimmune rheumatic disease in a pediatric population.

Rev Bras Reumatol Engl Ed 2017 May - Jun;57(3):224-228. Epub 2016 Oct 25.

Universidade Federal de São Paulo (Unifesp), Departamento de Pediatria, Setor de Reumatologia Pediátrica, São Paulo, SP, Brazil. Electronic address:

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http://dx.doi.org/10.1016/j.rbre.2016.09.016DOI Listing
September 2019

Devic's disease in an adolescent girl with juvenile dermatomyositis.

Rev Bras Reumatol Engl Ed 2017 Sep - Oct;57(5):475-478. Epub 2015 Mar 9.

Universidade Federal de São Paulo, Departamento de Pediatria, Unidade de Reumatologia Pediátrica, São Paulo, SP, Brazil. Electronic address:

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http://dx.doi.org/10.1016/j.rbre.2014.12.004DOI Listing
August 2019

Initial digital vasculitis in a large multicenter cohort of childhood-onset systemic lupus erythematosus.

Rev Bras Reumatol Engl Ed 2017 Nov - Dec;57(6):583-589. Epub 2017 Oct 16.

Universidade Federal de São Paulo (UNIFESP), Unidade de Reumatologia Pediátrica, São Paulo, SP, Brazil. Electronic address:

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http://dx.doi.org/10.1016/j.rbre.2017.09.002DOI Listing
August 2019

Prevalence of juvenile idiopathic arthritis in schoolchildren from the city of São Paulo, the largest city in Latin America.

Adv Rheumatol 2019 07 25;59(1):32. Epub 2019 Jul 25.

Pediatric Rheumatology Unit, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Borges Lagoa, 802 - Vila Clementino, São Paulo, 04038-001, Brazil.

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http://dx.doi.org/10.1186/s42358-019-0078-4DOI Listing
July 2019

The profile and clinical outcomes of patients with renal involvement due to IgA vasculitis: is azathioprine a good option for treatment?

Adv Rheumatol 2019 05 22;59(1):21. Epub 2019 May 22.

Pediatric Rheumatology division, Pediatric Department, Universidade Federal de São Paulo, Rua Borges Lagoa, 802, São Paulo, SP, 04038-001, Brazil.

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http://dx.doi.org/10.1186/s42358-019-0064-xDOI Listing
May 2019

Gait in children and adolescents with idiopathic musculoskeletal pain.

Adv Rheumatol 2019 02 12;59(1). Epub 2019 Feb 12.

Rheumatology Unit of Pediatrics Department of Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua Borges Lagoa, 802, São Paulo, SP, 04038.001, Brazil.

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http://dx.doi.org/10.1186/s42358-019-0052-1DOI Listing
February 2019

Pseudotumor cerebri in childhood and adolescence: data from a specialized service.

Arq Neuropsiquiatr 2018 11;76(11):751-755

Universidade Federal de São Paulo, Departamento de Pediatria, Unidade de Reumatologia Pediátrica, São Paulo SP, Brasil.

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http://dx.doi.org/10.1590/0004-282X20180131DOI Listing
November 2018

Psychological characteristics of caregivers of pediatric patients with chronic rheumatic disease in relation to treatment adherence.

Pediatr Rheumatol Online J 2018 Oct 12;16(1):63. Epub 2018 Oct 12.

Pediatric Rheumatology Unit, Allergy, Immunology and Rheumatology Division, Department of Pediatrics, Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM), Borges Lagoa Street, 802, Vila Clementino, São Paulo, SP, 04083-001, Brazil.

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http://dx.doi.org/10.1186/s12969-018-0280-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6186042PMC
October 2018

Nutritional intervention in patients with juvenile systemic lupus erythematosus: protective effect against the increase in fat mass.

Rheumatol Int 2018 06 2;38(6):985-992. Epub 2018 May 2.

Pediatrics Department, Universidade Federal de SãoPaulo, Rua Borges Lagoa, 802 - Vila Clementino, São Paulo, SP, CEP 04038-001, Brazil.

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http://dx.doi.org/10.1007/s00296-018-4031-3DOI Listing
June 2018

A case-control study about bite force, symptoms and signs of temporomandibular disorders in patients with idiopathic musculoskeletal pain syndromes.

Adv Rheumatol 2018 06 19;58(1). Epub 2018 Jun 19.

Universidade Federal de São Paulo (UNIFESP), Rua Guilherme Moura, São Paulo, 95, Brazil.

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http://dx.doi.org/10.1186/s42358-018-0006-zDOI Listing
June 2018

Patients with juvenile idiopathic arthritis in clinical remission with positive power Doppler signal in joint ultrasonography have an increased rate of clinical flare: a prospective study.

Pediatr Rheumatol Online J 2017 Nov 13;15(1):80. Epub 2017 Nov 13.

Pediatric Rheumatology Unit, Allergy, Immunology and Rheumatology Division, Pediatric Department, Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM), Borges Lagoa Street, 802, Vila Clementino, São Paulo, SP Zip code 04038-001, Brazil.

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http://dx.doi.org/10.1186/s12969-017-0208-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5683235PMC
November 2017

Functional resonance magnetic imaging (fMRI) in adolescents with idiopathic musculoskeletal pain: a paradigm of experimental pain.

Pediatr Rheumatol Online J 2017 Nov 14;15(1):81. Epub 2017 Nov 14.

Pediatric Rheumatology Unit of the Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo and Doctor of Department of Pediatrics, Hospital Israelita Albert Einstein, Rua Borges Lagoa 802 - Vila Clementino, São Paulo, SP, CEP 04038-002, Brazil.

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http://dx.doi.org/10.1186/s12969-017-0209-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5686883PMC
November 2017

[Chorea: a rare manifestation of Takayasu's arteritis].

Rev Bras Reumatol 2015 Jul-Aug;55(4):384-6. Epub 2014 Aug 29.

Setor de Reumatologia Pediátrica, Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo, SP, Brasil. Electronic address:

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http://dx.doi.org/10.1016/j.rbr.2013.09.003DOI Listing
July 2017

Health-related quality of life evaluated by Pediatric Quality of Life Inventory 4.0 in pediatric leprosy patients with musculoskeletal manifestations.

Rev Bras Reumatol 2015 Sep-Oct;55(5):414-9. Epub 2015 May 23.

Unidade de Reumatologia Pediátrica, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brasil; Divisão de Reumatologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brasil. Electronic address:

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http://dx.doi.org/10.1016/j.rbr.2014.12.013DOI Listing
July 2017

Challenges in transitioning adolescents and young adults with rheumatologic diseases to adult Care in a Developing Country - the Brazilian experience.

Pediatr Rheumatol Online J 2017 May 30;15(1):47. Epub 2017 May 30.

Division of Rheumatology MS 60, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, USA.

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http://dx.doi.org/10.1186/s12969-017-0176-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5450078PMC
May 2017

Lipid profile among girls with systemic lupus erythematosus.

Rheumatol Int 2017 Jan 16;37(1):43-48. Epub 2015 Nov 16.

Federal University of São Paulo (Universidade Federal de São Paulo), ABC, Rua Ipê, 112, apto 111, São Paulo, SP, 04022-005, Brazil.

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http://link.springer.com/10.1007/s00296-015-3393-z
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http://dx.doi.org/10.1007/s00296-015-3393-zDOI Listing
January 2017

Nailfold videocapillaroscopy in healthy children and adolescents: description of normal patterns.

Clin Exp Rheumatol 2016 Sep-Oct;34 Suppl 100(5):193-199. Epub 2016 Mar 1.

Division of Paediatric Rheumatology, Department of Paediatrics, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

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January 2017

Juvenile fibromyalgia syndrome: Blunted heart rate response and cardiac autonomic dysfunction at diagnosis.

Semin Arthritis Rheum 2016 12 16;46(3):338-343. Epub 2016 Jul 16.

Rheumatology Division, Faculdade de Medicina da Universidade de São Paulo, Sao Paulo, Brazil; Pediatric Rheumatology Unit, Children's Institute, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Eneas Carvalho Aguiar, 647-Cerqueira César, Sao Paulo 05403-000, Brazil. Electronic address:

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http://dx.doi.org/10.1016/j.semarthrit.2016.07.002DOI Listing
December 2016

Sleep, quality of life and mood of nursing professionals of pediatric intensive care units.

Rev Esc Enferm USP 2016 Apr;50(2):279-85

Universidade Federal de São Paulo, Escola Paulista de Medicina, Professor Adjunto, Departamento de Pediatria, Setor de Reumatologia, São Paulo, SP, Brazil.

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http://dx.doi.org/10.1590/S0080-623420160000200014DOI Listing
April 2016

Health related quality of life measure in systemic pediatric rheumatic diseases and its translation to different languages: an international collaboration.

Pediatr Rheumatol Online J 2014 25;12:49. Epub 2014 Nov 25.

Department of Pediatrics, Alberta Children's Hospital Research Institute Faculty of Medicine, University of Calgary, Calgary, AB Canada.

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http://ped-rheum.biomedcentral.com/articles/10.1186/1546-009
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http://dx.doi.org/10.1186/1546-0096-12-49DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4334772PMC
May 2015

Fatigue in children with juvenile idiopathic arthritis: reliability of the "Pediatric Quality of Life Inventory-Multidimensional Fatigue Scale".

Rheumatol Int 2015 Jan 19;35(1):133-9. Epub 2014 Jun 19.

Pediatric Rheumatology Unit, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Borges Lagoa 802, São Paulo, Brazil,

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http://link.springer.com/10.1007/s00296-014-3064-5
Publisher Site
http://dx.doi.org/10.1007/s00296-014-3064-5DOI Listing
January 2015

[Devic's disease in an adolescent girl with juvenile dermatomyositis].

Rev Bras Reumatol 2015 Jan 28. Epub 2015 Jan 28.

Unidade de Reumatologia Pediátrica do Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo, SP, Brasil. Electronic address:

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http://dx.doi.org/10.1016/j.rbr.2014.12.004DOI Listing
January 2015

Importance of adherence in the outcome of juvenile idiopathic arthritis.

Curr Rheumatol Rep 2014 Apr;16(4):410

Pediatric Rheumatology Unit, Allergy, Immunology and Rheumatology Division, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-UNIFESP), São Paulo, Brazil,

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http://dx.doi.org/10.1007/s11926-014-0410-2DOI Listing
April 2014

Effects of Pilates exercises on health-related quality of life in individuals with juvenile idiopathic arthritis.

Arch Phys Med Rehabil 2013 Nov 24;94(11):2093-102. Epub 2013 Jun 24.

Rehabilitation Department, Setor de Reumatologia Pediátrica do Departamento de Pediatria da Universidade Federal de São Paulo/Escola Paulista de Medicina, São Paulo, SP, Brazil. Electronic address:

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http://dx.doi.org/10.1016/j.apmr.2013.05.026DOI Listing
November 2013

Health related quality of life of children with rheumatic heart diseases: reliability of the Brazilian version of the Pediatric Quality of Life Inventory™ Cardiac Module scale.

Health Qual Life Outcomes 2013 Nov 15;11:198. Epub 2013 Nov 15.

Rheumatology Unit, Department of Pediatrics, Federal University of São Paulo/São Paulo School of Medicine (Universidade Federal de São Paulo/Escola Paulista de Medicina - UNIFESP/EPM), São Paulo, Brazil.

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http://dx.doi.org/10.1186/1477-7525-11-198DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842767PMC
November 2013

[Health-related quality of life of the children of health professionals].

Rev Esc Enferm USP 2012 Dec;46(6):1313-9

Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo, Brasil.

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http://dx.doi.org/10.1590/s0080-62342012000600005DOI Listing
December 2012

Assessment of nutritional status and eating disorders in female adolescents with fibromyalgia.

J Adolesc Health 2012 Nov 17;51(5):524-7. Epub 2012 Apr 17.

Pediatric Rheumatology Unit, Department of Pediatrics, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.

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http://dx.doi.org/10.1016/j.jadohealth.2012.02.018DOI Listing
November 2012

Sleep, stress, neurocognitive profile and health-related quality of life in adolescents with idiopathic musculoskeletal pain.

Clinics (Sao Paulo) 2012 Oct;67(10):1139-44

Pediatric Rheumatology Unit, Department of Pediatrics, Faculdade de Medicina, Universidade Federal de São Paulo, São Paulo/SP, Brazil.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3460015PMC
http://dx.doi.org/10.6061/clinics/2012(10)04DOI Listing
October 2012

Nailfold capillaroscopy in children and adolescents with rheumatic diseases.

Rev Bras Reumatol 2012 Oct;52(5):722-32

Universidade Federal de São Paulo, Brazil.

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October 2012

Ocular changes due to the treatment of juvenile systemic lupus erythematosus.

Rev Bras Reumatol 2011 Dec;51(6):554-7

setor de Reumatologia Pediátrica, Departamento de Pediatria, Universidade Federal de São Paulo.

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December 2011

Quality of life among children from São Paulo, Brazil: the impact of demographic, family and socioeconomic variables.

Cad Saude Publica 2010 Mar;26(3):631-6

Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil.

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http://dx.doi.org/10.1590/s0102-311x2010000300020DOI Listing
March 2010

Autoinflammatory syndromes: report on three cases.

Sao Paulo Med J 2009 Sep;127(5):314-6

Division of Pediatric Rheumatology, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil.

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http://dx.doi.org/10.1590/s1516-31802009000500012DOI Listing
September 2009

[Is rheumatic fever a more severe disease in pre-school children?].

Acta Reumatol Port 2009 Jan-Mar;34(1):66-70

Setor de Reumatologia Pediátrica, Disciplina de Alergia, Imunologia clínica e Reumatologia do Departamento de Pediatria da Universidade Federal de São Paulo - Escola Paulista de Medicina.

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July 2009

Quality of life of children and adolescents from São Paulo: reliability and validity of the Brazilian version of the Pediatric Quality of Life Inventory version 4.0 Generic Core Scales.

J Pediatr (Rio J) 2008 Jul-Aug;84(4):308-15. Epub 2008 Aug 1.

Pediatric Rheumatology Unit, Department of Pediatrics, Universidade Federal de São Paulo - Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil.

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http://dx.doi.org/10.2223/JPED.1788DOI Listing
May 2009

[Nailfold capillaroscopy in children and adolescents with rheumatic diseases].

Acta Reumatol Port 2008 Oct-Dec;33(4):395-400

Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

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February 2009

Henoch-Schönlein purpura: recurrence and chronicity.

J Pediatr (Rio J) 2007 Mar-Apr;83(2):177-80. Epub 2007 Feb 27.

Departamento de Pediatria, Universidade Federal de São Paulo - Escola Paulista de Medicina, São Paulo, SP, Brazil.

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http://www.scielo.br/pdf/jped/v83n2/en_v83n2a13.pdf
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http://www.jped.com.br/conteudo/Ing_resumo.asp?varArtigo=159
Publisher Site
http://dx.doi.org/10.2223/JPED.1595DOI Listing
February 2008

Homocysteine and lipid profile in children with Juvenile Idiopathic Arthritis.

Pediatr Rheumatol Online J 2007 Apr 2;5. Epub 2007 Apr 2.

Department of Pediatrics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil.

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http://dx.doi.org/10.1186/1546-0096-5-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1869026PMC
April 2007

Nonsteroidal anti-inflammatory drugs: cyclooxygenase 2 inhibitors.

J Pediatr (Rio J) 2006 Nov;82(5 Suppl):S206-12

Departamento de Pediatria, Universidade Federal de São Paulo - Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil.

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http://dx.doi.org/10.2223/JPED.1560DOI Listing
November 2006

Inflammatory myopathies in childhood: correlation between nailfold capillaroscopy findings and clinical and laboratory data.

J Pediatr (Rio J) 2006 Jan-Feb;82(1):40-5

Universidade Federal de São Paulo, São Paulo, SP, Brazil.

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http://dx.doi.org/10.2223/JPED.1435DOI Listing
August 2006

Development of a tool for early referral of children and adolescents with signs and symptoms suggestive of chronic arthropathy to pediatric rheumatology centers.

Arthritis Rheum 2006 Jun;55(3):373-7

Escola Paulista de Medicina, Universidade Federal de São Paulo, Avenida Brigadeiro Faria Lima 1826 cj 205, São Paulo, SP CEP 01451-001, Brazil.

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http://dx.doi.org/10.1002/art.21983DOI Listing
June 2006

A case-control sleep study in children with polyarticular juvenile rheumatoid arthritis.

J Rheumatol 2006 Apr 1;33(4):796-802. Epub 2006 Mar 1.

Department of Pediatrics, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.

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http://www.jrheum.org/content/33/4/796.full.pdf
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April 2006

Diagnosis of malignancies in children with musculoskeletal complaints.

Sao Paulo Med J 2005 Jan 31;123(1):21-3. Epub 2005 Mar 31.

Department of Pediatrics, Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, Brazil.

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http://dx.doi.org/10.1590/s1516-31802005000100005DOI Listing
January 2005

Frequency of antinuclear antibodies in healthy children and adolescents.

Clin Pediatr (Phila) 2004 Sep;43(7):637-42

Pediatric Rheumatology Unit, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil.

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http://dx.doi.org/10.1177/000992280404300709DOI Listing
September 2004

[Behçet's disease in childhood].

J Pediatr (Rio J) 2002 Mar-Apr;78(2):128-32

Departamento de Pediatria, Universidade Federal de São Paulo, SP.

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http://dx.doi.org/10.2223/jped.827DOI Listing
February 2004

[Uveitis in juvenile idiopathic arthritis]

J Pediatr (Rio J) 2002 Jan-Feb;78(1):62-6

Universidade Federal de São Paulo (UNIFESP-EPM), SP, Brazil.

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December 2003

Treatment of refractory juvenile idiopathic arthritis via pulse therapy using methylprednisolone and cyclophosphamide.

Sao Paulo Med J 2003 May 8;121(3):117-20. Epub 2003 Aug 8.

Clinical Immunology and Rheumatology, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.

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http://dx.doi.org/10.1590/s1516-31802003000300006DOI Listing
May 2003

Sydenham's chorea--clinical and evolutive characteristics.

Sao Paulo Med J 2002 Jan;120(1):16-9

Section of Pediatric Rheumatology, Discipline of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.

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http://dx.doi.org/10.1590/s1516-31802002000100005DOI Listing
January 2002