title: [Dr. Jirí Volejník, 60 years of age].
mesh_terms: D001634:Bibliographies as Topic; D003604:Czechoslovakia; D049673:History, 20th Century; D010372:Pediatrics / Q000266:history
vernacular_title: Profesor MUDRr. Jirí Volejník, DrSc., sedesátiletý.