T.C.-F.Y. advises and speaks for Gilead Sciences. G.L.-H.W. advises AstraZeneca, Gilead Sciences, GlaxoSmithKline, Janssen, Virion Biotherapeutics, speaks for Abbott, AbbVie, Ascletis, Bristol-Myers Squibb, Echosens, Ferring, Gilead Sciences, GlaxoSmithKline, Janssen, Roche, and received a research grant from Gilead Sciences.