@article{Palen2008,
author = {Palen, L.-A. and Smith, E.A. and Caldwell, L.L. and Flisher, A.J. and Wegner, M. and Vergnani, T.},
title= {Inconsistent reports of sexual intercourse among South African high school students},
year = {2008},
doi = {10.1016/j.jadohealth.2007.08.024},
journal = {Journal of Adolescent Health},
volume = {42},
number = {3},
pages = {221--227},
}