Components of the crude risk ratio.
D000328:Adult; D000367:Age Factors; D000493:Allopurinol / Q000009:adverse effects; D000667:Ampicillin / Q000627:therapeutic use; D001699:Biometry; D003276:Contraceptives, Oral / Q000009:adverse effects; D003875:Drug Eruptions / Q000453:epidemiology / Q000209:etiology; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D009017:Morbidity; D012737:Sex Factors; D013924:Thrombophlebitis / Q000453:epidemiology / Q000209:etiology
D003276:Contraceptives, Oral; D000493:Allopurinol; D000667:Ampicillin