Measuring maternal mortality: a systematic review of methods used to obtain estimates of the maternal mortality ratio (MMR) in low- and middle-income countries.
作者信息
Mgawadere Florence, Kana Terry, van den Broek Nynke
出版信息
Br Med Bull. 2017 Jun 1;122(1):1. doi: 10.1093/bmb/ldx004.