The scientific work of professor N.N. Petrov— an outstanding soviet healthcare organizer, scientist and humanist. Оn the occasion (of the 150th anniversary of his birth) - T. Sh. Morgoshiia; V. A. Tikhonenko; A. V. Kim; M. Azamov; L. A. Rastova; M. S. Trudovsky; A. S. Buneeva; T. S. Kostikova (Clinical Medicine (Russian Journal), 2026)