Park, Byung Kwan
Gong, In Hyuck
Kang, Min Yong
Sung, Hyun Hwan
Jeon, Hwang Gyun
Jeong, Byong Chang
Jeon, Seong Soo
Lee, Hyun Moo
Seo, Seong Il
Article History
Received: 23 September 2017
Revised: 26 December 2017
Accepted: 2 January 2018
First Online: 9 February 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Dr. Kyu-Sung Lee.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: During the preparation of our manuscript we have consulted Keumhee Cho, PhD, an expert in statistics/biometry from the Samsung Medical Center, Biostatistics and Clinical Epidemiology Center.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • Retrospective• Case-control study• Performed at one institution