TY - RPRT TI - Measuring sexual behaviour: methodological challenges in survey research. AU - K A Fenton AU - A M Johnson AU - S McManus AU - B Erens PY - 2001 DO - 10.1136/sti.77.2.84 UR - https://pubmed.ncbi.nlm.nih.gov/11287683/ ID - 11287683 ER -