1. Department of Oncology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
2. Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
3. Department of Oncology, Da Qing Long Nan Hospital, Daqing, Heilongjiang Province, China
4. Department of Nursing, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China