Consent to participate

Informed consent was obtained from all individual participants included in the study.

Consent for publication

Informed consent was obtained from all individual participants included in the study.

Competing interests

SM received speaker honoraria from G.E. Healthcare and Life Molecular Imaging and honoraria for participation in advisory boards from Eli-Lilly. MB has received speaker honoraria from G.E. Healthcare. MP received research support from Novartis and Nutricia and received fees from Novartis, Merck, and Biogen. DA received fees from Fidia, Jazz, and Lundbeck for lectures, consultation, and board participation.