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25. Lasers in gastroenterology. Gogna A; Kar P J Assoc Physicians India; 1990 Apr; 38(4):287-9. PubMed ID: 1697290 [No Abstract] [Full Text] [Related]
26. The current status of gastrointestinal laser activity in the United States. Fleischer D Gastrointest Endosc; 1982 Aug; 28(3):157-61. PubMed ID: 6982189 [TBL] [Abstract][Full Text] [Related]