1. Department of Medical Oncology, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610051, P.R China
2. Department of Clinical Laboratory, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610051, P.R China
3. Department of Biostatistics, The University of Texas Health Science Center at Houston, Houston, TX, USA
4. McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
5. Department of Biochemistry and Molecular Biology, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610051, P.R. China