Maternal and neonatal data collection systems in low- and middle-income countries for maternal vaccines active safety surveillance systems: A scoping review

Mabel Berrueta , Agustin Ciapponi, Ariel Bardach, Federico Rodriguez Cairoli, Fabricio J. Castellano, Xu Xiong, Andy Stergachis, Sabra Zaraa, Ajoke Sobanjo-ter Meulen, Pierre Buekens and Scoping Review Collaboration Group. BMC Pregnancy and Childbirth.