title: Historical aspects of hysteroscopy. Commentary.
mesh_terms: D002245:Carbon Dioxide; D004724:Endoscopy / Q000266:history*; D005260:Female; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008722:Methods; D014599:Uterus
chemical_list: D002245:Carbon Dioxide