1. Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
2. Department of Cardiology, Harbin First Hospital, Harbin, Heilongjiang 150001, P.R. China
3. Department of Pharmacy, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China