Robyn A North, Lesley M E McCowan, Gustaaf A Dekker, Lucilla Poston, Eliza H Y Chan, Alistair W Stewart et al
North R A, McCowan L M E, Dekker G A, Poston L, Chan E H Y, Stewart A W et al.
Clinical risk prediction for pre-eclampsia in nulliparous women: development of model in international prospective cohort
BMJ 2011; 342 :d1875
doi:10.1136/bmj.d1875