RT Journal Article SR Electronic T1 OCs and VTE: a practical answer to an old question JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 44 OP 44 DO 10.1783/147118910790291046 VO 36 IS 1 A1 Rudiger Pittrof A1 Ulrike Sauer YR 2010 UL http://jfprhc.bmj.com/content/36/1/44.1.abstract AB