1. Graduate School of Medicine, Gunma University, Gunma, Japan
2. School of Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
3. Nuclear Medicine Center, Second State Central Hospital, Ulaanbaatar, Mongolia
4. Third State Central Hospital, Ulaanbaatar, Mongolia
5. ShinonMed Hospital, Ulaanbaatar, Mongolia
6. Department of Family Medicine, School of Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
7. Mie University Graduate School of Medicine, Tsu, Japan
8. Graduate School of Health Sciences, Gunma University, Maebashi, Japan
9. Department of Diagnostic Radiology and Nuclear Medicine, Gunma University, Maebashi, Japan