Lasers in general surgery.
D013505:Digestive System Surgical Procedures; D005767:Gastrointestinal Diseases / Q000601:surgery; D006801:Humans; D053685:Laser Therapy / Q000295:instrumentation; D008175:Lung Neoplasms / Q000188:drug therapy; D010778:Photochemotherapy; D055585:Physical Phenomena; D010825:Physics