1. Radiological Technology, Graduate School of Health Sciences, Okayama University, Okayama 700-8558, Japan
2. Department of Oral and Maxillofacial Radiology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
3. Department of Health and Welfare Science, Graduate School of Health and Welfare Science, Okayama Prefectural University, Okayama 719-1197, Japan
4. Radiology Diagnosis, Okayama Saiseikai General Hospital, Okayama 700-8558, Japan
5. Department of Radiology, Matsuyama Red Cross Hospital, Matsuyama 790-8524, Japan
6. Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Jordan University of Science and Technology, Irbid 22110, Jordan
7. Graduate School of Interdisciplinary Sciences and Engineering in Health Systems, Okayama University, Okayama 770-8558, Japan
8. Department of Oral Radiology, Faculty of Dentistry, Hasanuddin University, Sulawesi 90245, Indonesia
9. Department of Dentistry and Dental Surgery, College of Medicine and Health Sciences, An-Najah National University, Nablus 44839, Palestine