Funding
This article presents independent research funded by the Danish foundation TrygFonden (reference number 110711) (email:info@trygfonden.dk, phone: 0045 45 26 08 00) and Rigshospitalet, Copenhagen University Hospital (reference number E-22316-02) (email:www.rigshospitalet.dk, phone: 0045 35 45 64 31). The sponsor and funding body did not have any role in the design of the study, data collection, data analysis, interpretation of data, in writing the article or decision to publish. The corresponding author had full acces to all the data and had final responsibility for the decision to submit for publication.