title: [Achievements in the field of hematology during the 30 years of the Polish People's Republic].
mesh_terms: D006405:Hematology / Q000266:history*; D049673:History, 20th Century; D011044:Poland; D012106:Research / Q000266:history
vernacular_title: Postepy wiedzy o krwi w trzydziestoleciu Polskiej Rzeczypospolitej Ludowej