title: Commentary: Strengths and limitations of the discordant twin-pair design in social epidemiology. Where do we go from here?
authors: Danish Ageing Research Centre, Institute of Public Health, University of Southern Denmark, Odense, Denmark.
authors: Mia
authors: M
authors: Madsen
authors: Merete
authors: M
authors: Osler
mesh_terms: D004522:Educational Status; D015438:Health Behavior; D006304:Health Status; D006801:Humans; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D014481:United States / Q000453:epidemiology