title: On the occurrence of a factor in human serum activating the specific agglutintion of sheep blood corpuscles. 1939.
authors.forename: Erik
authors.initials: E
authors.lastname: Waaler
mesh_terms: D000372:Agglutination Tests / Q000266:history*; D000818:Animals; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D004912:Erythrocytes / Q000276:immunology*; D049673:History, 20th Century; D006801:Humans; D012217:Rheumatoid Factor / Q000266:history* / Q000276:immunology / Q000302:isolation & purification; D044967:Serum / Q000276:immunology*; D012756:Sheep
chemical_list: D012217:Rheumatoid Factor