1.
Akhtar N. The Effects of Entonox and Epidural Analgesia on Arterial Oxygen Saturation of Women in Labour. Annals KEMU [Internet]. 2011 May 21 [cited 2025 Dec. 15];16(3):150. Available from: https://www.annalskemu.org/journal/index.php/annals/article/view/215