Ursa Fratnik Florijancic: Tattoos - Do We Know it All? LA&HA Symposium 2018 Related videos Sebastian Velez: Different Approaches to Treating Melasma using the StarWalker® Uwe Paasch: Laser-Assisted Photodynamic Therapy - Advancing Skin Cancer Prevention and Rejuvenation Ashraf Badawi: Pathogenesis of Skin Aging and How to Design a Rejuvenation Plan Fernando Macedo: V-Shape Lift with "Erbium douche" Technique - Is it Possible to Stop Aging?