title: An unknown page in the history of medicine. Clandestine medical schools in Poland during 1940 to 1945.
mesh_terms: D049673:History, 20th Century; D012577:Schools, Medical / Q000266:history*; D012579:Schools, Nursing / Q000266:history; D012580:Schools, Pharmacy / Q000266:history; D012581:Schools, Public Health / Q000266:history