title: [Professor Frank Král in Bulgaria and the USA].
authors.forename: A
authors.initials: A
authors.lastname: Holub
mesh_terms: D000818:Animals; D002031:Bulgaria; D018153:Czech Republic; D049673:History, 20th Century; D006801:Humans; D012871:Skin Diseases / Q000662:veterinary; D014481:United States; D014730:Veterinary Medicine / Q000266:history