title: Commentary: Fundamental limitations of meta-analysis of cohort studies, epidemiological challenges and the stage of obesity epidemic.
authors.affiliation: School of Public Health, University of Hong Kong, Hong Kong, China.
authors.forename: Tai Hing
authors.initials: TH
authors.lastname: Lam
authors.affiliation: School of Public Health, University of Hong Kong, Hong Kong, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
mesh_terms: D015331:Cohort Studies; D058872:Epidemics; D006801:Humans; D009765:Obesity / Q000453:epidemiology*