Application of an information diffusion model for evaluating different targeted intervention strategies for HIV prevention. (December 2020) - Kwan, T.H.; Wong, N.S.; Lui, G.C.Y.; Chan, K.C.W.; Tsang, O.T.Y.; Leung, W.S.; Ho, K.M.; Lee, M.P.; Lam, W.; Chan, S.N.; Chan, D.P.C.; Lee, S.S.