1. Dermatology Center Parmova; Ljubljana Slovenia
2. Faculty of Medicine; University of Maribor; Maribor Slovenia
3. Department of Dermatology; Centre for Laser and Vascular Anomalies; Skåne University Hospital; Malmö Sweden
4. Department of Dermatology; University Hospital Örebro; Örebro Sweden
5. Laser Service; Department of Dermatology; Ramón y Cajal Hospital; University of Alcalá; Madrid Spain