Effects of High Dose Fentanyl on Brain-stem Auditory Evoked Potentials and on 40 Hz-AuditorySteady State Responses under Different of Sound Stimulus Intensity Levels in Rabbits

• 大剂量芬太尼麻醉对家兔不同声强下脑干听觉诱发电位及40Hz听觉稳态电位的影响