Rutstein, Shea O., George T. Bicego, Ann K. Blanc, Naomi Rutenberg, Fred Arnold, and Jeremiah A. Sullivan. 1990. An assessment of DHS-I data quality. DHS Methodological Reports No. 1. Columbia, Maryland, USA: Institute for Resource Development/Macro Systems Inc. Available at http://dhsprogram.com/pubs/pdf/MR1/MR1.pdf.