1. Mediteknia Skin & Hair Lab; Las Palmas de Gran Canaria Spain
2. Universidad Fernando Pessoa Canarias; Las Palmas de Gran Canaria Spain
3. Monasterium Laboratory; Muenster Germany
4. Department of Dermatology; University of Manchester; Manchester U.K.
5. Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami FL U.S.A.