1. Digoxin and Heart Failure: Are We Clear Yet?
   Amit Gupta et al, 2017, Cardiovascular Innovations and Applications CrossRef
2. Association of Digoxin Application Approaches With Long-Term Clinical Outcomes in Rheumatic Heart Disease Patients With Heart Failure: A Retrospective Study
   Cheng Liu et al, 2021, Frontiers in Cardiovascular Medicine CrossRef
3. Values of hemodynamic variation in response to passive leg raising in predicting exercise capacity of heart failure with preserved ejection fraction
   Hong-Lian Zhou et al, 2016, Medicine CrossRef