Authors’ contributions
K.B. Kluivers: design of the study, the acquisition, analysis, and interpretation of data, drafting the manuscript and thereby final approval of the version to be published; M. Kamping: acquisition, analysis, and interpretation of data, final approval of the version to be published; A.L. Milani: design of the study, the acquisition, analysis, and interpretation of data, revising manuscript critically for important intellectual content and final approval of the version to be published; J. IntHout: analysis and interpretation of data, revising manuscript critically for important intellectual content, and final approval of the version to be published; M.I. Withagen: design of the study, acquisition, analysis, and interpretation of data, revising manuscript critically for important intellectual content, and final approval of the version to be published. All authors agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are answered.