The Effect of Using a Neck Roll Pillow with a Sniffing Position on Oxygen Saturation in Post Operative Patients under General Anesthesia. JKF [Internet]. 2026 Apr. 30 [cited 2026 Apr. 28];8(2):321-7. Available from: https://ejournal.medistra.ac.id/index.php/JKF/article/view/3374