19. PREVALENCE AND ASSOCIATED FACTORS OF NON-SPECIFIC VAGINITIS AT NATIONAL HOSPITAL OF OBSTETRICS AND GYNECOLOGY. YHCĐ [Internet]. 2025 Aug. 22 [cited 2026 Sept. 8];66(CĐ9-NCKH). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/2687