@article{Chmielewska2021,
author = {Chmielewska, B. and Barratt, I. and Townsend, R. and Kalafat, E. and Meulen, J. and Gurol-Urganci, I. and O’Brien, P. and Morris, E. and Draycott, T. and Thangaratinam, S. and Le Doare, K. and Ladhani, S. and Dadelszen, P. and Magee, L. and Khalil, A.},
title= {Effects of the COVID-19 pandemic on maternal and perinatal outcomes: A systematic review and meta-analysis},
year = {2021},
doi = {10.1016/S2214-109X(21)00079-6},
volume = {9},
number = {6},
pages = {759--772},
}