Circon equipment.
D001296:Audiovisual Aids; D003365:Costs and Cost Analysis; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation; D008853:Microscopy / Q000295:instrumentation; D008866:Microsurgery / Q000295:instrumentation*; D009040:Motion Pictures; D019721:Ophthalmoscopes; D013690:Television; D014743:Videotape Recording / Q000295:instrumentation