Medical philately: "A very special juice".  A bloody tale on stamps.
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D001803:Blood Transfusion / Q000266:history*; D006405:Hematology / Q000266:history*; D049690:History, Ancient; D049692:History, Early Modern 1451-1600; D049691:History, Medieval; D049711:History, Modern 1601-; D010678:Philately / Q000266:history*