Increasing HIV Treatment Optimism but No Changes in HIV Risk Behavior Among Men Who Have Sex With Men in Vancouver, Canada. (1st December 2017) - Moore, David M.; Cui, Zishan; Lachowsky, Nathan J.; Rich, Ashleigh J.; Roth, Eric A.; Raymond, Henry F.; Sereda, Paul; Montaner, Julio; Wong, Jason; Armstrong, Heather L.; Hall, David; Hogg, Robert S.