Survey of transfusion practices in preterm infants in Europe by Scrivens, A, Riebel, NJ, Heeger, L, Stanworth, S, Lopriore, E, New, HV, Dame, C, Fijnvandraat, K, Deschmann, E, Aguar, M, Braekke, K, Cardona, FS, Cools, F, Farrugia, R, Ghirardello, S, Lozar, J, Matasova, K, Muehlbacher, T, Sankilampi, U, Soares, H, Szabo, M, Szczapa, T, Zaharie, G, Roehr, C, Fustolo-Gunnink, S