International mixed methods study protocol to develop a patient-reported outcome measure for all types of chronic wounds (the WOUND-Q) oleh Andrea L Pusic, Anne Klassen, Chris Gibbons, Emiel LWG van Haren, Karen Cross, Kenneth L Fan, Maarten M Hoogbergen, Natasha M Longmire, Lotte Poulsen, Jens Ahm Sorensen, Lee Squitieri, Elena Tsangaris, Tert C van Alphen, Anne-Margreet van Dishoeck, Dali Vasilic