"Risk Factors Of Preterm Birth of Neonates Attended Al- Mukalla Maternity and Childhood Hospital ,Yemen" (2023) Hadhramout University Journal of Natural & Applied Sciences, 14(1). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/26 (تاريخ الوصول: 29 يوليو 2026).