TY - JOUR T1 - Comparative analysis between condom use clusters and risk behaviours among Portuguese university students JO - Saúde e Sociedade A1 - Gomes, Alexandra A1 - Nunes, Cristina SN - 0104-1290 UL - 10.1590/S0104-12902015000100027 VL - 24 Y1 - 2015 PB - Brazil ER -