Contemp Clin Trials 2013 Sep 27;36(1):32-40. Epub 2013 May 27.
Perelman School of Medicine at the University of Pennsylvania, Department of Medicine, Renal, Electrolyte and Hypertension Division, Philadelphia, PA 190104, USA.
Inflamm Bowel Dis 2013 Mar;19(3):599-613
Division of Gastroenterology and Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Prog Community Health Partnersh 2012 ;6(4):499-506
Philadelphia Collaborative Violence Prevention Center.
Crit Care Med 2012 Jul;40(7):2190-5
Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Center for Clinical Epidemiology and Biostatistics, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Arch Pediatr Adolesc Med 2012 Mar;166(3):232-9
Division of Infectious Diseases, The Children's Hospital of Philadelphia, 34th St and Civic Center Blvd, Philadelphia, PA 19104, USA.