Humans / Female / Male / Clinical Sciences / Facial Nerve / Middle Aged / Adult / Degeneration / Prognosis / Reproducibility of Results / Otolaryngology - Head and Neck Surgery / Head and Neck Surgery / Action Potentials / Middle Aged / Adult / Degeneration / Prognosis / Reproducibility of Results / Otolaryngology - Head and Neck Surgery / Head and Neck Surgery / Action Potentials