title: Blood is thicker than water: the strengths of family-based case-control studies.
authors.forename: Demetrius M
authors.initials: DM
authors.lastname: Maraganore
mesh_terms: D016022:Case-Control Studies; D015986:Confounding Factors, Epidemiologic; D004777:Environment; D005192:Family Health; D020022:Genetic Predisposition to Disease; D006801:Humans; D010300:Parkinson Disease / Q000453:epidemiology / Q000235:genetics; D012107:Research Design; D012307:Risk Factors; D012680:Sensitivity and Specificity; D035781:Siblings; D012907:Smoking / Q000453:epidemiology / Q000235:genetics