APA (7th ed.) Citation

Carvalho, C., Fuertes, R., Lucas, R., Martins, A., Campos, M., & Mendao, L. (2013). HIV testing among Portuguese men who have sex with men - results from the European MSM Internet Survey (EMIS).

Chicago Style (17th ed.) Citation

Carvalho, C., R. Fuertes, R. Lucas, A. Martins, M. Campos, and L. Mendao. HIV Testing Among Portuguese Men Who Have Sex with Men - Results from the European MSM Internet Survey (EMIS). 2013.

MLA (8th ed.) Citation

Carvalho, C., et al. HIV Testing Among Portuguese Men Who Have Sex with Men - Results from the European MSM Internet Survey (EMIS). 2013.