New Internet-Based Warfarin Anticoagulation Management Approach After Mechanical Heart Valve Replacement: Prospective, Multicenter, Randomized Controlled Trial by Zhihui Zhu, Chenyu Li, Jinglun Shen, Kaisheng Wu, Yuehuan Li, Kun Liu, Fan Zhang, Zhenhua Zhang, Yan Li, Jie Han, Ying Qin, Yu Yang, Guangpu Fan, Huajun Zhang, Zheng Ding, Dong Xu, Yu Chen, Yingli Zheng, Zhe Zheng, Xu Meng, Haibo Zhang

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