2Murty GE,Diver JP,Kelly PJ,et al.The Nottingham system:objective assessment of facial nerve function in the clinic.Otolaryngol Head Neck Surg,1994,110:156-161.
3Ross BG,Fradet G,Nedzelski JM.Development of a sensitive clinical facial grading system.Otolaryngol Head Neck Surg,1996,114:380-386.
4House JW,Brackmann DE.Facial nerve grading system.Otolaryngol Head Neck Surg,1985,93:146-147.
5Burres S,Fisch U.The comparison of facial grading systems.Arch Otolaryngol Head Neck Surg,1986,112:755-758.
6Fields MJ,Peckitt NS.Facial nerve function index:a clinical measurement of facial nerve activity in patients with facial nerve palsies.Oral Surg Oral Med Oral Pathol,1990,69:681-682.