title: Blood group serology--the first four decades (1900--1939).
mesh_terms: D001789:Blood Group Antigens / Q000266:history*; D001803:Blood Transfusion / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012699:Serology / Q000266:history*
chemical_list: D001789:Blood Group Antigens