5House JW. Facial never grading systems. Laryngoscope 1983; 93(8):1056-69.
6VanSwearingen JM, Brach JS. The Facial Disability Index: reliability and validity of a disability assessment instrument for disorders of the facial neuromuscular system.Phys Ther 1996;76(12):1288-98.
8Lagalla G, Logullo F, Di Bella P et al. Influence of early high-dose steroid treatment on Bell's palsy evolution. Neurol Sci 2002;23(3):107-12.
9Shafshak TS, Essa AY, Bakey FA. The possible contributing factors for the success of steroid therapy in Bell's palsy: a clinical and electro-physiological study. J Laryngol Otol 1994;108(11):940-3.
