title: [Professor Witold Stefanski and the Polish Society of Parasitology].
mesh_terms: D049673:History, 20th Century; D010274:Parasitology / Q000266:history*; D011044:Poland; D012958:Societies, Scientific / Q000266:history*
vernacular_title: Profesor Witold Stefański i Polskie Towarzystwo Parazytologiczne