Poon, L C, Wright, D, Rolnik, D L, Syngelaki, A, Delgado, J L, Tsokaki, T, Leipold, G, Akolekar, R, Shearing, S, de Stefani, L, Jani, J C, Plasencia, W, Evangelinakis, N, Gonzalez-Vanegas, O, Persico, N & Nicolaides, K H 2017, ' ASPRE trial : effect of aspirin in prevention of preterm preeclampsia in subgroups of women according to their characteristics and medical and obstetrical history ', American Journal of Obstetrics and Gynecology . https://doi.org/10.1016/j.ajog.2017.07.038