TY - STAND AU - A. Nightingale AU - R. Lawrenson AU - E. Simpson AU - T. Williams AU - K. MacRae AU - R. Farmer BT - Eur J Contracept Reprod Health Care M1 - 4 PY - 2000 SP - 265 EP - 74 T2 - Eur J Contracept Reprod Health Care TI - The effects of age, body mass index, smoking and general health on the risk of venous thromboembolism in users of combined oral contraceptives VL - 5 SN - 1362-5187 (Print) 1362-5187 ER -