The history of the gamma knife. Preface.
D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D009462:Neurology / Q000266:history*; D016634:Radiosurgery / Q000266:history*