Oral contraceptives and venous thromboembolism.
Lawrenson
R
R
Farmer
R
R
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D015982:Bias; D003280:Contraceptives, Oral, Synthetic / Q000009:adverse effects* / Q000145:classification; D005260:Female; D006801:Humans; D016017:Odds Ratio; D045167:Progesterone Congeners / Q000009:adverse effects* / Q000145:classification; D013923:Thromboembolism / Q000139:chemically induced*; D013924:Thrombophlebitis / Q000139:chemically induced*
D003280:Contraceptives, Oral, Synthetic; D045167:Progesterone Congeners