OC06.04: Impact of replacing or adding pregnancy associated plasma protein‐A at 11–13 weeks on screening for preterm pre‐eclampsia. (14th September 2022) - Wah, I.; Sahota, D.S.; Chaemsaithong, P.; Wong, L.; Kwan, A.H.; Ting, Y.; Law, K.; Leung, T.; Poon, L.C.