T.C.-F.Y. has served as an advisory committee member and a speaker for Gilead Sciences. G.L.-H.W. has served as an advisory committee member for AstraZeneca, Gilead Sciences, GlaxoSmithKline, Janssen and Virion Biotherapeutics, and as a speaker for Abbott, AbbVie, Ascletis, Bristol-Myers Squibb, Echosens, Ferring, Gilead Sciences, GlaxoSmithKline, Janssen and Roche. She has also received a research grant from Gilead Sciences.