Authors’ contributions
DER
Dr. van Maurik, Dr. Bosmans and Dr. van der Flier designed the study. Van Unnik, Bakker and Zwan collected the data. Dr. van Maurik analyzed the data. Dr. van Maurik, and Dr. van der Flier interpreted the data and wrote the manuscript. Bakker, Dr. Broulikova, van Unnik, Dr. Zwan, Dr van de Giessen, Dr. Berkhof, Dr. Bouwman, and Dr. Bosmans revised the manuscript. Dr. van Maurik a completed the statistical analyses, had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analyses.