[1] Chinese Univ Hong Kong, Fac Med, Sch Chinese Med, Shatin, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Fac Med, Jockey Club Sch Publ Hlth & Primary Care, Shatin, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, Fac Med, Dept Med & Therapeut, Shatin, Hong Kong, Peoples R China
[4] Chinese Univ Hong Kong, Chinese Med Clin Cum Training & Res Ctr Tai Po Di, United Christian Nethersole Community Hlth Serv, Tai Po, Hong Kong, Peoples R China
[5] Cent South Univ, Xiangya Sch Publ Hlth, Changsha, Peoples R China