"Factors Associated With Difficult Asthma In Outpatient Chest Clinics In Mukalla District, Yemen" (2023) HADHRAMOUT JOURNAL OF MEDICAL SCIENCES, 6(1-2). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujms/article/view/226 (تاريخ الوصول: 23 يوليو 2026).