The pathogenesis of spina bifida: a study of the relationship between observation, hypothesis, and surgical incentive.
D000818:Animals; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008722:Methods; D016135:Spinal Dysraphism / Q000209:etiology* / Q000266:history / Q000601:surgery