1. Department of Rheumatology & Inflammation Research, Göteborg University, Guldhedsgatan 10A, 413 46 Göteborg, Sweden
2. Department of Virology, Göteborg University, Guldhedsgatan 10A, 413 46 Göteborg, Sweden
3. Department of Dermatovenereology, Göteborg University, Guldhedsgatan 10A, 413 46 Göteborg, Sweden
4. Department of Dermatology, Uddevalla Hospital, Uddevalla, Sweden