1. Department of Radiology; Sun Yat-Sen University (SYSU); Guangzhou Guangdong P.R. China
2. Department of Pathology, Third Affiliated Hospital; Sun Yat-Sen University (SYSU); Guangzhou Guangdong P.R. China
3. Department of Radiology, Mayo Clinic College of Medicine; Mayo Clinic; Rochester Minnesota USA
4. Department of Epidemiology and Biostatistics; West China School of Public Health Sichuan University; Chengdu P.R. China