1. Department of Nursing, Health and Culture, University West, 461 86 Trollhättan, Sweden
2. School of Life Sciences, University of Skövde, Högskolevägen 1, 541 28 Skövde, Sweden
3. Institute of Health and Care Sciences, University College of Borås, Allégatan 1, 501 90 Borås, Sweden
4. Institute of Health and Care Sciences, The Sahlgrenska Academy at Gothenburg University, Box 457, 405 30 Gothenburg, Sweden