1. Hair Disorders Unit, Ramon y Cajal Hospital, IRYCIS, University of Alcala, Madrid, Spain
2. Hair Disorders and Hair Transplantation Unit, Grupo Pedro Jaen Clinic, Madrid, Spain
3. BHR Clinic, Brussels, Belgium
4. Hair Surgery Service Department, Sabouraud Hospital Saint-Louis, Paris, France
5. Farjo Hair Institute, Manchester, UK
6. Department of Dermatology and Aesthetic Dermatology, San Raffaele University Hospital, Milan, Italy
7. Trichology and Hair transplantation Unit, Hospital HM Dr. Gálvez, Meyer&Alcaide Group, Málaga, Spain
8. Hair Treatment and Transplantation Center, Saint Petersburg, Russian Federation