@article{Cleland2004,
author = {Cleland, J. and Boerma, J.T. and Caraël, M. and Weir, S.S.},
title= {Monitoring sexual behaviour in general populations: a synthesis of lessons of the past decades},
year = {2004},
doi = {10.1136/sti.2004.013151},
journal = {Sexually Transmitted Infections},
volume = {80},
number = {Supplement II},
pages = {iii1--ii7},
}