YAG laser therapy of gastrointestinal tumors.
D002277:Carcinoma / Q000601:surgery*; D003110:Colonic Neoplasms / Q000601:surgery*; D004938:Esophageal Neoplasms / Q000601:surgery*; D006801:Humans; D053685:Laser Therapy; D012004:Rectal Neoplasms / Q000601:surgery*; D013274:Stomach Neoplasms / Q000601:surgery*