title: [Scientific activities of Associate Professor Jan Danielewicz].
mesh_terms: D049673:History, 20th Century; D010036:Otolaryngology / Q000266:history; D010372:Pediatrics / Q000266:history; D011044:Poland
vernacular_title: Jubileusz 50-lecia pracy naukowej i zawodowej doc. dr med. Jana Danielewicza.