Oral contraceptives and risk of venous thromboembolism: impact of duration of use.
Farley
T M
TM
Meirik
O
O
Marmot
M G
MG
Chang
C L
CL
Poulter
N R
NR
D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D016017:Odds Ratio; D012307:Risk Factors; D013923:Thromboembolism / Q000139:chemically induced* / Q000453:epidemiology; D013997:Time Factors
D003276:Contraceptives, Oral