4 May 2026 Prof. Georgi Tchernev: The Incidence Of Skin Tumors Is Growing Exponentially: The Cause Lies in Concepts Such as Nitrosogenesis and Oncoparmacogenesis, Which Relate to the Generic Structure of Certain Drugs! The full publication in medicalnews.bg: https://medicalnews.bg/2026/04/28/ проф-георги-чернев-честотата-на-мелан/