“17. SOME FACTORS AFFECTING THE RESULTS OF TREATMENT FOR THREATENED PRETERM LABOR WITH NIFEDIPINE AT BAC NINH OBSTETRICS AND PEDIATRIC HOSPITAL”. Vietnam Journal of Community Medicine 65, no. CĐ 12 - Bệnh viện Thủ Đức (December 12, 2024). Accessed September 9, 2026. https://tapchiyhcd.vn/index.php/yhcd/article/view/1827.