AHMAD, M. .; FATIMA, Z. . Finding Factors Causing Postdural Puncture Headache In Obstetric Patients After Spinal Anaesthesia. Journal of Bahria University Medical and Dental College, [S. l.], v. 2, n. 2, p. 17–20, 2012. Disponível em: https://ojs.bahria.edu.pk/jbumdc/index.php/ojs/article/view/39. Acesso em: 5 nov. 2025.