To the 100th anniversary of the birth of professor Alexey N. Protopopov, head of the department of radiation diagnostics n. a. professor N. E. Stern of Saratov State Medical University N. A. V. I. Razumovsky in 1973-1987

The article presents the milestones of the life and professional activity of Professor Alexey Nikolaevich Protopopov, Head of the Department of Radiation Diagnostics n. a. Professor N. E. Stern at the Saratov State Medical University n. a. V.I. Razumovsky from 1973 to 1987. The contribution of A. N. Protopopov to the development of the Department and practical radiology in Saratov was noted.