Beom Seok Ko

Beom Seok Ko

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Beom Seok Ko

Publications by authors named "Beom Seok Ko"

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Survival outcome of adjuvant endocrine therapy alone for patients with lymph node-positive, hormone-responsive, HER2-negative breast cancer.

Asian J Surg 2019 Oct 1;42(10):914-921. Epub 2019 Mar 1.

Division of Breast, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea. Electronic address:

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http://dx.doi.org/10.1016/j.asjsur.2019.01.003DOI Listing
October 2019

Is asymptomatic surveillance beneficial after standard treatment? A 10-year survival analysis of recurrent BC patients by detection method of recurrence.

Breast J 2019 Sep 17. Epub 2019 Sep 17.

Department of Surgery, Division of breast surgery, College of Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea.

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http://dx.doi.org/10.1111/tbj.13603DOI Listing
September 2019

Axillary Lymph Node Dissection Does Not Improve Post-mastectomy Overall or Disease-Free Survival among Breast Cancer Patients with 1-3 Positive Nodes.

Cancer Res Treat 2019 Jul 16;51(3):1011-1021. Epub 2018 Oct 16.

Department of Breast and Endocrine Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4143/crt.2018.438DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6639221PMC
July 2019

Clinical Implication of HER2 Status in Hormone Receptor-Positive Mucinous Breast Cancer.

Ann Surg Oncol 2019 Jul 11;26(7):2166-2174. Epub 2019 Apr 11.

Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.

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http://dx.doi.org/10.1245/s10434-019-07332-9DOI Listing
July 2019

Age-related risk factors associated with primary contralateral breast cancer among younger women versus older women.

Breast Cancer Res Treat 2019 Feb 30;173(3):657-665. Epub 2018 Oct 30.

Division of Breast Surgery, Department of Surgery, College of Medicine, University of Ulsan, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, 05505, Seoul, Republic of Korea.

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http://link.springer.com/10.1007/s10549-018-5031-4
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http://dx.doi.org/10.1007/s10549-018-5031-4DOI Listing
February 2019

Survival analysis according to period and analysis of the factors influencing changes in survival in patients with recurrent breast cancer: a large-scale, single-center study.

Breast Cancer 2018 Nov 21;25(6):639-649. Epub 2018 May 21.

Division of Breast and Endocrine Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, South Korea.

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http://link.springer.com/10.1007/s12282-018-0869-1
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http://dx.doi.org/10.1007/s12282-018-0869-1DOI Listing
November 2018

Comparing Accuracy of Mammography and Magnetic Resonance Imaging for Residual Calcified Lesions in Breast Cancer Patients Undergoing Neoadjuvant Systemic Therapy.

Clin Breast Cancer 2018 10 15;18(5):e1087-e1091. Epub 2018 Mar 15.

Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea. Electronic address:

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https://linkinghub.elsevier.com/retrieve/pii/S15268209173061
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http://dx.doi.org/10.1016/j.clbc.2018.03.011DOI Listing
October 2018

A retrospective prognostic evaluation analysis using the 8th edition of the American Joint Committee on Cancer staging system for breast cancer.

Breast Cancer Res Treat 2018 Jun 31;169(2):257-266. Epub 2018 Jan 31.

Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, Korea.

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http://dx.doi.org/10.1007/s10549-018-4682-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5945740PMC
June 2018

Chronological Improvement in Survival of Patients with Breast Cancer: A Large-Scale, Single-Center Study.

J Breast Cancer 2018 Mar 23;21(1):70-79. Epub 2018 Mar 23.

Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4048/jbc.2018.21.1.70DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5880968PMC
March 2018

No Association of Positive Superficial and/or Deep Margins with Local Recurrence in Invasive Breast Cancer Treated with Breast-Conserving Surgery.

Cancer Res Treat 2018 Jan 14;50(1):275-282. Epub 2017 Apr 14.

Division of Breast and Endocrine Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4143/crt.2017.041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5784642PMC
January 2018

Characteristics and prognosis of breast cancer after liver or kidney transplantation.

Breast Cancer Res Treat 2018 01 15;167(1):101-106. Epub 2017 Sep 15.

Division of Breast and Endocrine Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Pungnap-2dong, Song pa Gu, Seoul, 05505, Korea.

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http://dx.doi.org/10.1007/s10549-017-4504-1DOI Listing
January 2018

Ectopic Male Breast Cancer in the Perineum: A Case Report.

J Breast Cancer 2017 Dec 19;20(4):404-407. Epub 2017 Dec 19.

Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4048/jbc.2017.20.4.404DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5744002PMC
December 2017

Survival improvement in hormone-responsive young breast cancer patients with endocrine therapy.

Breast Cancer Res Treat 2017 Sep 10;165(2):311-320. Epub 2017 Jun 10.

Division of Breast and Endocrine Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea.

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http://dx.doi.org/10.1007/s10549-017-4331-4DOI Listing
September 2017

The Basic Facts of Korean Breast Cancer in 2012: Results from a Nationwide Survey and Breast Cancer Registry Database.

J Breast Cancer 2015 Jun 26;18(2):103-11. Epub 2015 Jun 26.

Department of Surgery, Cheil General Hospital and Women's Healthcare Center, Dankook University College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4048/jbc.2015.18.2.103DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4490258PMC
June 2015

Genetic polymorphism of ESR1 rs2881766 increases breast cancer risk in Korean women.

J Cancer Res Clin Oncol 2015 Apr 17;141(4):633-45. Epub 2014 Oct 17.

Department of Surgery, College of Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea.

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http://dx.doi.org/10.1007/s00432-014-1849-2DOI Listing
April 2015

Large genomic rearrangement of BRCA1 and BRCA2 genes in familial breast cancer patients in Korea.

Fam Cancer 2014 Jun;13(2):205-11

Division of Breast and Endocrine Surgery, Department of Surgery College of Medicine, University of Ulsan, Asan Medical Center, 388-1 Pungnap-dong, Songpa-gu, Seoul, 138-736, Korea.

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http://link.springer.com/10.1007/s10689-014-9704-9
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http://dx.doi.org/10.1007/s10689-014-9704-9DOI Listing
June 2014

Changing patterns in the clinical characteristics of korean breast cancer from 1996-2010 using an online nationwide breast cancer database.

J Breast Cancer 2012 Dec 31;15(4):393-400. Epub 2012 Dec 31.

Department of Surgery, Center for Breast Cancer, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.4048/jbc.2012.15.4.393DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3542846PMC
December 2012

Risk factor for axillary lymph node metastases in microinvasive breast cancer.

Ann Surg Oncol 2012 Jan 2;19(1):212-6. Epub 2011 Jun 2.

Department of Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.1245/s10434-011-1812-2DOI Listing
January 2012

Oncological safety of skin sparing mastectomy followed by immediate reconstruction for locally advanced breast cancer.

J Surg Oncol 2010 Jul;102(1):39-42

Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

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http://dx.doi.org/10.1002/jso.21573DOI Listing
July 2010