“The State of Cancer Care in Russia: Malignant Neoplasms of the Skin (C44). Typical Mortality, Median Survival, Observed and Relative Survival, Taking into Account the Stage of the Disease. Population-Based Research at the Federal District Level”. 2021. Voprosy Onkologii 67 (5): 640-45. https://doi.org/10.37469/0507-3758-2021-67-5-640-645.