@article{Zablotska2009, author = {Zablotska, I.B. and Imrie, J. and Prestage, G. and Crawford, J. and Rawstorne, P. and Grulich, A. and Jin, F. and Kippax, S.}, title= {Gay men’s current practice of HIV seroconcordant unprotected anal intercourse: Serosorting or seroguessing?}, year = {2009}, doi = {10.1080/09540120802270292}, volume = {21}, number = {4}, pages = {501--510}, }