@article{Berhan2013,
author = {Berhan, Y. and Berhan, A.},
title= {Meta-analysis on risky sexual behaviour of men: Consistent findings from different parts of the world},
year = {2013},
doi = {10.1080/09540121.2012.689812},
volume = {25},
number = {2},
pages = {151--159},
}