SHAZA KHAN, HUMA BATOOL, ZEENAT UMAR. Comparison Effectiveness of Epidural Catheter by using Two Techniques Air Versus Saline as Pre-emptive Analgesia in Obstetric Patients. Pakistan Journal of Medical & Health Sciences, [S. l.], v. 18, n. 01, p. 747, 2024. DOI: 10.53350/pjmhs02024181747. Disponível em: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/7020. Acesso em: 30 jan. 2026.