title: What causes Bell's palsy? I have had two episodes and am concerned about another recurrence.
authors.affiliation: Wilford Hall USAF Medical Center, USA.
authors.forename: G
authors.initials: G
authors.lastname: Gronseth
mesh_terms: D020330:Bell Palsy / Q000209:etiology*; D005158:Facial Paralysis / Q000209:etiology; D006801:Humans; D012008:Recurrence