Tan, Vu Manh, Pham Xuan Hung, Tran Vuong The Vinh, Nguyen Thi Van Khanh, and Vo Thai Duy. “Holter-Derived Mean Heart Rate As a Predictor of Short-Term Clinical Risk in Patients Hospitalized With Acute Heart Failure”. Cardiology Research 17, no. 3 (January 1, 2026): 164–169. Accessed June 6, 2026. https://cr.elmerpub.com/index.php/cr/article/view/2189.