1. The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
2. The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
3. Guangzhou Women and Children Medical Center, Guangzhou 510623, Guangdong, China
4. The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China