@article{Bradley2019,
author = {Bradley, S.E.K. and Polis, C.B. and Bankole, A. and Croft, T.},
title= {Global contraceptive failure rates: Who is most at risk?},
year = {2019},
doi = {10.1111/sifp.12085},
volume = {50},
number = {1},
pages = {3--24},
}