![](https://www.dovepress.com/assets/img/addon/og_logo.png)
Assessment of Knowledge and Training Needs for the Clinical Management of Warfarin Anticoagulation Among Physicians in ...
Introduction Currently, approximately 300,000 patients worldwide require heart valve replacement surgery each year. In China, there are about 80,000 cases of patients needing valve surgery annually.1,2 Artificial heart valves mainly come in two types: …