Discussion to Lincoff's paper on cryogenic therapy.
D003452:Cryosurgery / Q000295:instrumentation; D005547:Foreign Bodies / Q000601:surgery; D006801:Humans; D012160:Retina / Q000601:surgery; D012163:Retinal Detachment / Q000601:surgery; D013523:Surgical Equipment; D014822:Vitreous Body / Q000601:surgery