Benefit of an Internet-Based Management System among Hemodialysis Patients at the Risk of Intradialytic Hypotension and Muscle Cramps: A Controlled before and after Study. - Xu, Jinsheng; Jin, Jingjing; Cheng, Meijuan; Zhou, Wei; Zhang, Shenglei; Bai, Yaling (Blood Purification, 2022)