1. School of Biology & Engineering, Guizhou Medical University, Guiyang, Guizhou Province, China
2. Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang, Guizhou Province, China
3. Department of Radiology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
4. Department of Pathology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
5. Department of Electrical and Computer Engineering, College of Engineering, University of Texas, El Paso, TX, USA