[1] Chonnam Natl Univ, Dept Internal Med, Bitgoeul Hosp, Gwangju, South Korea
[2] Seoul Natl Univ, Clin Prevent Med Ctr, Bundang Hosp, Seongnam, South Korea
[3] Seoul Natl Univ, Ctr Prevent Med & Publ Hlth, Bundang Hosp, Seongnam, South Korea
[4] Gyeonggi Prov Govt, Hlth & Welf Bur, Uijongbu, Gyeonggi Do, South Korea
[5] Gyeonggi Prov Med Ctr, Publ Hlth Team, Paju Si, Gyeonggi Do, South Korea
[6] Seoul Natl Univ, Bundang Hosp, Dept Internal Med, Coll Med, Gumi Ro 166, Seongnam Si 463707, Gyeonggi Do, South Korea