1. Worldwide Laser Institute Dallas Texas USA
2. Department of Dermatology CMSDH Kolkata India
3. Department of Dermatology and Venereology I.M. Sechenov First Moscow State Medical University Moscow Russia
4. Department of Dermatology University of Studies Guglielmo Marconi Rome Italy
5. Department of Dermatology University of Rome G. Marconi Rome Italy
6. Department of Dermatology University Hospital Basel Basel Switzerland