Documents Savoirs Somatosensory Evoked Potentials suppression due to remifentanil during spinal operations; a prospective clinical study Asouhidou Irene, Katsaridis Vasilios, Vaidis Georgios, Ioannou Polimnia, Givissis Panagiotis, Christodoulou Anastasios, Georgiadis, Georgiadis Georgios