title: Marriages between first cousins in England and their effects.
authors.forename: George H
authors.initials: GH
authors.lastname: Darwin
mesh_terms: D003241:Consanguinity; D003627:Data Interpretation, Statistical; D004739:England / Q000453:epidemiology; D005190:Family; D005260:Female; D056084:Genetic Fitness; D020022:Genetic Predisposition to Disease / Q000266:history*; D049672:History, 19th Century; D006801:Humans; D008297:Male; D008393:Marriage / Q000266:history*; D001523:Mental Disorders / Q000453:epidemiology / Q000235:genetics / Q000266:history