1. Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
2. Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
3. Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610093, P. R. China