title: Weight change in middle-aged Americans.
authors.forename: David F
authors.initials: DF
authors.lastname: Williamson
mesh_terms: D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology*; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology* / Q000503:physiopathology; D044469:Racial Groups / Q000706:statistics & numerical data; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation; D014481:United States / Q000453:epidemiology