[1] Nursing Res Fdn, Asemamiehenkatu 2, Helsinki 00520, Finland
[2] WHO Collaborating Ctr Nursing, Helsinki, Finland
[3] Univ Turku, Dept Nursing Sci, Turku, Finland
[4] Finnish Ctr Evidence Based Hlth Care, Helsinki, Finland
[5] Satakunta Hosp Dist, Pori, Finland
[6] Univ Ghent, Univ Ctr Nursing & Midwifery, Dept Publ Hlth & Primary Care, Skin Integr Res Grp SKINT, Ghent, Belgium
[7] Orebro Univ, Sch Hlth Sci, Swedish Ctr Skin & Wound Res, Orebro, Sweden
[8] Fac Hlth Sci, Dept Clin Res, Res Unit Plast Surg, Odense, Denmark