An improved regional anesthetic technique for peroral endoscopy.
D000765:Anesthesia, Conduction / Q000379:methods*; D001999:Bronchoscopy; D003042:Cocaine / Q000008:administration & dosage; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage
D008012:Lidocaine; D003042:Cocaine