title: Commentary: Do genes or environment influence development of rheumatoid arthritis?
authors.affiliation: ARC Epidemiology Unit, Manchester University Medical School, Manchester M13 9PT. a.silman@man.ac.uk
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Silman
mesh_terms: D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000235:genetics; D004200:Diseases in Twins / Q000209:etiology* / Q000235:genetics; D020022:Genetic Predisposition to Disease; D006801:Humans; D008019:Life Style; D012306:Risk; D018433:Twin Studies as Topic