Competing interests
N.M., Nordisk
R.R. reports grants from Boehringer Ingelheim, grants and personal fees from Novo Nordisk, personal fees from Sanofi, personal fees from Eli Lilly, outside the submitted work. SBH reports grants and personal fees from Sanofi, grants and personal fees from Novo Nordisk, grants and personal fees from AstraZeneca, personal fees from Eli Lilly, personal fees from Janssen, grants and personal fees from Abbott, outside the submitted work. S.M.R. reports personal fees and non-financial support from Boehringer Ingelheim, Janssen, Eli Lilly, Sanofi, Bayer and AstraZeneca; grants, personal fees and non-financial support from Abbott, and Novo Nordisk; personal fees from Western University, Schulich School of Medicine and Dentistry and The Federation of Medical Women of Canada; grants from the Canadian Institute of Health Research, outside the submitted work. N.M. reports grants and non-financial support from AstraZeneca, grants and non-financial support from Merck, grants and non-financial support from Sanofi, outside the submitted work. H.C.G. reports research grants from Eli Lilly, AstraZeneca, Merck, Novo Nordisk and Sanofi; honoraria for speaking from Boehringer Ingelheim, Eli Lilly, Novo Nordisk, Sanofi, DKSH, and Zuellig; and consulting fees from Abbott, Covance, Eli Lilly, Novo Nordisk, Sanofi, Pfizer and Kowa. C.K.K. reports research grants from Boehringer Ingelheim. J.P., A.E., and B.Z. have nothing to disclose.