EVALUATE OF THE TREATMENT OUTCOMES OF ORONASAL FISTULA CLOSURE USING MUCOPERIOSTEAL FLAP IN PATIENTS WITH CLEFT LIP AND PALATE AT THE HANOI CENTRAL ODONTO-STOMATOLOGY HOSPITAL FROM JUNE 2019 TO SEPTEMBER 2020. YHCĐ [Internet]. 2026 June 25 [cited 2026 Sept. 9];67(6). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/5513