Nguyễn, N. Đ.; Trần, D. C.; Phạm, Q. H.; Nguyễn, Đ. L.; Phạm, Đ. V.; Nguyễn, H. L. TO EVALUATE THE INITIAL RESULTS OF LAPAROSCOPIC SURGERY OF GASTRIC-DUODENAL PERFORATION AND COMMENT ON COMPLICATIONS AT 4 MILITARY HOSPITAL- 4 ARMY CORPS. JPMP175 2023, 10.