title: Ivan Petrovich Pavlov and William Gantt--a meeting of generations. Unknown photographs.
authors.forename: E A
authors.initials: EA
authors.lastname: Kosmachevskaya
authors.forename: L I
authors.initials: LI
authors.lastname: Gromova
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010827:Physiology / Q000266:history*