title: Platelets and megakaryocytes. I. Comments and dedication to Arvid Hellem.
mesh_terms: D001792:Blood Platelets / Q000502:physiology; D006405:Hematology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D008533:Megakaryocytes / Q000502:physiology; D009664:Norway