1. Department of Habilitation, Linköping University, Linköping, Sweden;
2. Department of Medical and Health Sciences, Linköping University, Linköping, Sweden;
3. Research & Development Unit of Local Health Care, Linköping University, Linköping, Sweden;
4. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden;
5. Department of Dermatology and Venereology, Linköping University, Linköping, Sweden;
6. Department of Science and Technology, Linköping University, Linköping, Sweden