1 School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China.
2 Department of Cardiology, Shenzhen Bao'an District Traditional Chinese Medicine Hospital, The Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, China.
3 Department of Nursing, Shenzhen Bao'an District Traditional Chinese Medicine Hospital, The Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, China.