Faithfulness to One's Profession – the Foundation of Life. On the 85th Anniversary of Professor Valentin Ivanovich Kozlov

The article, timed to coincide with the anniversary of V.I. Kozlov – Head of the Department of Human Anatomy at the Patrice Lumumba Peoples' Friendship University of Russia, Honored Scientist of the Russian Federation, Academician of the International Academy of Sciences of Higher Education, Doctor of Medical Sciences, Professor – examines his scientific and pedagogical achievements. V.I. Kozlov is the founder of a new direction in morphology: the in vivo study of the structural organization of the microcirculatory bed. He developed the concept of the microvascular module as a structural and functional unit, and made significant contributions to the study of microcirculation under normal and pathological conditions, across different ages, and under laser exposure. For over 50 years, V.I. Kozlov has been engaged in teaching. He is the author and editor of numerous textbooks, study guides, and methodological works for medical universities, which have received prestigious awards. Professor V.I. Kozlov established an original scientific school, under whose guidance dozens of dissertations have been defended. He founded and for many years headed the journal "Laser Medicine," and organized numerous all-Russian and international scientific congresses and conferences. The scientific and educational activities of Valentin Ivanovich have been recognized with the titles of Honored Scientist of the Russian Federation and Honorary Worker of Higher Education. His research has been supported by grants from Russian and international foundations. The vibrant personality of V.I. Kozlov as a renowned scientist, talented educator, and science organizer, whose long and fruitful career serves as a source of inspiration for students and colleagues, is highlighted.