Conflict of interests
CH has no conflict of interest. LJB has received honoraria from Chiesi Pharma AB, Sweden, for being a member of the steering committee for the Nordic Neonatal Meetings, and from AbbVie AB for lectures and for previously being a member of the steering committee for the NEOSPEX educational project. LB has no conflict of interest. IH-P holds stock/stock options in Premalux AB and has received honoraria from Baxter International for lectures. ET has no conflict of interest.