RT Journal Article SR Electronic T1 Pregnancy and contraception in heart disease and pulmonary arterial hypertension JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 75 OP 81 DO 10.1783/147118906776276486 VO 32 IS 2 A1 Sara Thorne A1 Catherine Nelson-Piercy A1 Eric Rosenthal A1 Anne MacGregor A1 Simon Gibbs A1 John Crowhurst A1 Nick Panay A1 Fiona Walker A1 David Williams A1 Michael de Swiet A1 John Guillebaud YR 2006 UL http://jfprhc.bmj.com/content/32/2/75.abstract AB