Epidemiology of cot deaths: the Northern Ireland study.
D000367:Age Factors; D001724:Birth Weight; D003645:Death, Sudden; D004200:Diseases in Twins / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D009660:Northern Ireland; D012621:Seasons; D012931:Social Environment; D013577:Syndrome