2.11. Data management and quality control
The data measured by the sphygmomanometer and ECG monitor as well as the electronic scale scores will be uploaded in real-time to the data management terminal, which is designed for this trial by Dalian Xiran Technology Co., Ltd., Liaoning, China, with no access to all patients and treatment operators. An independent data manager will examine the accuracy and promptness of the data. All patients’ names, phone numbers, and other private information will be protected from disclosure. No data modification is allowed after the test has finished. The implementation of the trial will be reviewed every 12 months by the ethics committee of Beijing University of Chinese Medicine.