METASTATIC GESTATIONAL TROPHOBLASTIC NEOPLASIA PRESENTING WITH GASTROINTESTINAL HEMORRHAGE AT THE NATIONAL HOSPITAL OF OBSTETRICS AND GYNECOLOGY – A RARE CASE REPORT. YHCĐ [Internet]. 2026 June 2 [cited 2026 Sept. 8];67(English Version No 1, 2026). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/5277