Competing interests
Y.-L.W. reports receiving speaker bureau fees from AstraZeneca, Bristol-Myers Squibb, Pfizer Inc., Roche AG, Boehringer Ingelheim, Eli Lilly & Co., Merck Sharp & Dohme, and Sanofi and research grants from AstraZeneca, Bristol-Myers Squibb, Pfizer Inc., and Roche AG. W.-Z.Z. reports receiving speaker fees from AstraZeneca and Roche. All other authors declare no competing interests.