Utility of the continuous intraoperative neuromonitoring in the prevention of the recurrent laryngeal nerve paralysis during thyroid surgery. A prospective observational study Irene Maya Senosiain; Andrea Goikoetxea Urdiain; Maria Pilar Salvador Egea; Patricia Ahechu Garayoa; Emma Anda Apiñaniz; Isabel Blanco Saiz; Raquel Lacomba Montes;