[Is the familial incidence of multiple sclerosis dependent on exogenous factors?].
D005828:Genetics, Population; D005860:Germany, West; D006801:Humans; D009103:Multiple Sclerosis / Q000453:epidemiology / Q000209:etiology / Q000235:genetics*
Beruht die familiäre Häufung der Multiplen Sklerose auf exogenen Fakotren?