Choi, Soo Yeon
Ko, Ahra
Kang, Hui-Seung http://orcid.org/0000-0003-2207-5559
Hwang, Myung-Sil
Lee, Hee-Seok
Article History
Received: 10 October 2018
Accepted: 29 March 2019
First Online: 30 April 2019
Compliance with ethical standards
: This study was approved by the Asan Medical Center (Seoul, Korea) Human Research Ethics Committee. All participants provided written informed consent in accordance with the Helsinki Declaration prior to data collection.