1. Bell’s palsy: the spontaneous course of 2,500 peripheral facial nerve palsies of different etiologies;Peitersen;Acta Otolaryngol.,2002
2. Seasonal patterns of idiopathic facial paralysis: a 16-year study;Myers;Otolaryngol. Head. Neck Surg.,1999
3. Incidence of Bell’s palsy;Yanagihara;Ann. Otol. Rhinol. Laryngol. Supp.,1987
4. Bell’s palsy. A prospective, longitudinal, descriptive, and observational analysis of prognosis factors for recovery in Mexican patients;Sánchez-Chapul;Rev. Invest. Clin.,2011
5. Expression of emotion and quality of life after facial nerve paralysis;Coulson;Otol. Neurotol.,2004