Mariken Stegmann

Additional information  Funding  This study was supported by a grant from the Stichting Stoffels‐Hornstra. The sponsor has no  role in the study design, collection, analysis, interpretation of data, the writing of the report,  or in the decision to submit the article for publication.  Conflicts of interest  The authors have declared no competing interests.  Acknowledgements  We would like to thank C. Roorda, F. Gaster, A. Stilma and R. Dik for their help with coding  documents. We would like to thank the participating hospitals: University Medical Centre  Groningen, Treant Zorggroep locatie Scheperziekenhuis Emmen, and Antonius Ziekenhuis  Sneek. Dr Robert Sykes  (www.doctored.org.uk) pro‐ vided technical editing and writing  services for the final draft of the manuscript. 76 Chapter 6