@article{e69c1589fca841248c7e0ff0274f1855,
title = "Incidence of venous thromboembolism in users of combined oral contraceptives",
author = "Hershel Jick and Vandenbroucke, \{Jan P.\} and Bloemenkamp, \{Kitty W.M.\} and Rosendaal, \{Frits R.\} and Helmerhorst, \{Frans M.\} and Lawrenson, \{R. A.\} and A. Whalley and E. Simpson and Farmer, \{R. D.T.\}",
year = "2000",
month = jan,
day = "1",
doi = "10.1136/bmj.320.7226.57",
language = "English",
volume = "320",
journal = "BMJ",
issn = "0959-8138",
publisher = "BMJ",
number = "7226",
}