@techreport{Bradley2015,
author = {Bradley, S. and Winfrey, W. and Croft, T.N.},
title= {Contraceptive use and perinatal mortality in the DHS: An assessment of the quality and consistency of calendars and histories},
year = {2015},
publisher = {ICF International (DHS Methodological Reports 17)},
address = {Rockville },
}