The effect of opioid-free anesthesia protocol on the early quality of recovery after major surgery (SOFA trial): study protocol for a prospective, monocentric, randomized, single-b... oleh Maxime Léger, Solène Pessiot-Royer, Tristan Perrault, Elsa Parot-Schinkel, Fabienne Costerousse, Emmanuel Rineau, Sigismond Lasocki