title: STUDIES IN PHOTOCOAGULATION. II. THE OBSERVATION SYSTEM.
mesh_terms: D004864:Equipment and Supplies; D008028:Light Coagulation; D009887:Ophthalmoscopy; D055095:Optics and Photonics; D010789:Phototherapy
keywords: EQUIPMENT AND SUPPLIES; LIGHT COAGULATION; OPHTHALMOSCOPY; OPTICS