Cryo instruments: thermoelectric and freon systems.
D001831:Body Temperature; D002387:Cataract Extraction / Q000295:instrumentation; D003452:Cryosurgery / Q000295:instrumentation*; D004553:Electric Conductivity; D005128:Eye Diseases / Q000601:surgery; D005615:Freezing; D006219:Halogens; D006358:Hot Temperature; D012034:Refrigeration; D012160:Retina / Q000601:surgery; D013525:Surgical Instruments
D006219:Halogens