Truong TXQ, Vu QN, Nguyen TTP, Pham TN, Nguyen CH. Knowledge and anticoagulant adherence to vitamin k antagonists in patients with mechanical heart valves under outpatient follow-up at hanoi heart hospital in 2023. VJCTS. 2025;52:148 - 158. doi:10.47972/vjcts.v52i.1505