Etiology of multiple sclerosis and Hodgkin's disease.
D000328:Adult; D000367:Age Factors; D003710:Demography; D005260:Female; D006689:Hodgkin Disease / Q000209:etiology* / Q000235:genetics / Q000401:mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000209:etiology* / Q000235:genetics / Q000401:mortality; D012959:Socioeconomic Factors; D013997:Time Factors