title: A tale of two societies.
authors.forename: R L
authors.initials: RL
authors.lastname: Medcalf
authors.forename: P M
authors.initials: PM
authors.lastname: Mannucci
mesh_terms: D006405:Hematology / Q000266:history*; D006487:Hemostasis; D049673:History, 20th Century; D049674:History, 21st Century; D010506:Periodicals as Topic / Q000266:history*; D012955:Societies, Medical / Q000266:history* / Q000458:organization & administration; D013927:Thrombosis