1National Evidence-Based Healthcare Collaborating Agency, Seoul, Korea. bjpark@snu.ac.kr
2Department of Family Medicine, Seoul Paik Hospital, College of Medicine, Inje University, Seoul, Korea.
3Hallym Sacred-Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
4Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.

1한국보건의료연구원, 2인제대학교 의과대학 서울백병원 가정의학교실, 3한림대학교 의과대학 한림대성심병원 가정의학교실, 4서울대학교 의과대학 예방의학교실