A Syndemic of Psychosocial Problems Places the MSM (Men Who Have Sex with Men) Population at Greater Risk of HIV Infection Jie, Wu ; Ciyong, Lu ; Xueqing, Deng ; Hui, Wang ; Lingyao, Hong Abstract Publication: PLoS ONE Pub Date: March 2012 DOI: 10.1371/journal.pone.0032312 Bibcode: 2012PLoSO...732312J