Cardiac failure at Ahmadu Bello University Hospital, Zaria.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006333:Heart Failure / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D011446:Prospective Studies