title: Pollyanna or Debbie Downer?
authors.forename: Richard N
authors.initials: RN
authors.lastname: Bergman
mesh_terms: D035843:Biomedical Research / Q000639:trends; D014943:Global Health; D006801:Humans; D033181:Information Dissemination; D009765:Obesity; D010506:Periodicals as Topic / Q000639:trends*