1. Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
2. Department of Laboratory Medicine, Chengdu Shangjin Nanfu Hospital/Shangjin Branch of West China Hospital, Sichuan University, Chengdu, China
3. Department of Statistics, University of Virginia, Charlottesville, USA
4. Anesthesiology Department, Qingdao Eighth People’s Hospital, Qingdao, China