1. Department of Pathology; The Cancer Institute, Japanese Foundation for Cancer Research (JFCR); 3-8-31 Ariake Koto-ku Tokyo Japan
2. Department of Sports and Health Science; Daito Bunka University, 560 Iwadono; Higashimathuyama-shi Saitama Japan
3. Department of Pathology and Clinical Laboratories; National Cancer Center Hospital; Chuo-ku Tokyo Japan
4. Division of Head and Neck, The Cancer Institute Hospital; JFCR; Tokyo Japan
5. Division of Ultrasonography Examination, The Cancer Institute Hospital; JFCR; Tokyo Japan
6. Department of Diagnostic Pathology and Cytology; Kuma Hospital; 8-2-35, Shimoyamate-dori, Chuo-ku Kobe Hyogo Japan