Competing interests
T.B.S. reports personal fees from Pfizer, Eisai, and Astellas Pharma, outside the submitted work. T.B.S. has done consulting and paid lectures for Pfizer and paid lectures for Eisai and Astellas Pharma unrelated to this work.
A.P. reports participation in research projects funded by Alcon, Almirall, Astellas, Astra-Zeneca, Boehringer-Ingelheim, Novo Nordisk, Servier and LEO Pharma, all with funds paid to the institution where
he was employed (no personal fees) and with no relation to the work reported in this paper.