hat
Ng JYS, Wong ML, Chan RKW, Sen P, Chio MTW, ak Koh D Diferans sèks nan faktè ki asosye avèk konjesyon anal Pami Adolesan ki gen etewoseksyèl in Singapore nan edikasyon ak prevansyon SIDA, 2015, Vol. 27, Non 4, pp. 373-385. fè: 10.1521 / aeap.2015.27.4.373. (Sante)
eng
Ng JYS, Wong ML, Chan RKW, Sen P, Chio MTW, and Koh D Gender Differences in Factors Associated With Anal Intercourse Among Heterosexual Adolescents in Singapore in AIDS Education and Prevention, 2015, Vol. 27, No. 4, pp. 373-385. doi: 10.1521/aeap.2015.27.4.373. (Health)