Lessons from the past guide the future: is history truly circular?
O'Donnell
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New England Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA.
D004724:Endoscopy / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D016491:Peripheral Vascular Diseases / Q000266:history*; D014656:Vascular Surgical Procedures / Q000266:history*; D014689:Venous Insufficiency / Q000145:classification / Q000266:history