Young-Ho Khang1. 1. Department of Preventive Medicine, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil Songpa-Gu, Seoul, 138-736 Korea. Email: youngk@amc.seoul.kr.
Authors: Yoon Jung Kim; Yo Han Lee; Yun Jeong Lee; Kyeong Jin Kim; Jee Hyun An; Nam Hoon Kim; Hee Young Kim; Dong Seop Choi; Sin Gon Kim Journal: BMJ Open Date: 2016-06-01 Impact factor: 2.692