“40. COMPLIANCE WITH THE USE OF VITAMIN K ANTI-COAGULANT DRUGS IN PATIENTS AFTER MECHANICAL HEART VALVE REPLACEMENT SURGERY AT THE CARDIOLOGY CLINIC, DA NANG HOSPITAL”, YHCĐ, vol. 66, no. CĐ10-HNKH Trường ĐH Phenikaa, June 2025, doi: 10.52163/yhc.v66iCD10.2647.