PREVALENCE OF HIGH RISK AND ASSOCIATED FACTORS AMONG PREGNANT WOMEN AT 11-13 WEEKS AND 6 DAYS OF GESTATION UNDERGOING PREECLAMPSIA SCREENING. YHCĐ [Internet]. 2026 June 25 [cited 2026 Sept. 9];67(6). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/5498