(Q52889228)
Statements
The increased risk of venous thromboembolism and the use of third generation progestagens: role of bias in observational research. The Transnational Research Group on Oral Contraceptives and the Health of Young Women. (English)
Lewis MA
Heinemann LA
MacRae KD
Bruppacher R
Spitzer WO
1 July 1996
54
1
5-13