Training facilitated by inter-institutional collaboration and telemedicine: an alternative for improving results in the placenta accreta spectrum - Nieto-Calvache, A J; Palacios-Jaraquemada, J M; Vergara-Galliadi, L M; Nieto-Calvache, A S; Zambrano, M A; Burgos-Luna, J M (AJOG Glob Rep., 2021)