Can follow-up study questions about correct and consistent condom use reduce respondent over-reporting among groups at high risk? An analysis of datasets from six countries.
Lipovsek
Varja
V
Population Services International, 1120 19th Street, NW, Suite 600, Washington, DC 20036, USA. varjalipovsek@yahoo.com.
Longfield
Kim
K
Buszin
Justin
J