1. Department of Radiology and Biomedical Imaging; University of California; San Francisco California USA
2. Department of Radiology, Faculty of Medicine; Naresuan University; Phitsanulok Thailand
3. Department of Radiology; Technical University of Munich; Munich Germany
4. Department of Epidemiology and Biostatistics; University of California, San Francisco; San Francisco California USA
5. Department of Internal Medicine; UC Davis Medical Center; Sacramento California USA