[Study of the pathogenic factors of aplastic anemia].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000741:Anemia, Aplastic / Q000139:chemically induced*; D001554:Benzene / Q000009:adverse effects*; D002648:Child; D002675:Child, Preschool; D002701:Chloramphenicol / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010653:Phenylbutazone / Q000009:adverse effects*; D012044:Regression Analysis; D012306:Risk
D002701:Chloramphenicol; D010653:Phenylbutazone; D001554:Benzene