[Wong, William C. W.; Wan, Eric; Lam, Cindy L. K.] Univ Hong Kong, Dept Family Med & Primary Care, Hong Kong, Hong Kong, Peoples R China; [Jiang, Sunfang; Peng, Minghui; Zhu, Zhanshu] Fudan Univ, Dept Gen Practice, Shanghai, Peoples R China; [Ong, Jason] Monash Univ, Cent Clin Sch, Melbourne, Australia; [Kidd, Michael] Flinders Univ S Australia, Fac Med Nursing & Hlth Sci, Adelaide, SA, Australia; [Roland, Martin] Univ Cambridge, Cambridge Ctr Hlth Serv Res, Cambridge, England