Text and Data Mining valid from 2018-03-01
Received: 21 October 2017
Revised: 7 February 2018
Accepted: 8 February 2018
First Online: 1 March 2018
Compliance with ethical standards
: The Research Council of Norway provided funding to Otivio (NFR grant no: 241589) for this study as part of an industrial PhD project. ØHS is a PhD student at the University of Oslo. ØHS is also employed at and is a shareholder in Otivio AS. Otivio AS owns and has the commercial rights to the intermittent negative pressure (INP) technology used in the study. IM is the Chief Scientific Officer and co-founder of Otivio AS, and is a shareholder in the company. None of the other authors have any personal conflicts of interest—financial or otherwise. The authors alone are responsible for the content and writing of the paper. Otivio has not had any role related to the design of the study, collection and analysis of data, or the decision to publish the results.