1. Department of Pathology and Cell Regulation,Kyoto Prefectural University of Medicine,Kawaramachi Hirokoji,Kamigyo-ku,Kyoto 602-0841
2. Department of Otorhinolaryngology,Kyoto Prefectural University of Medicine,Kyoto 602-8566
3. Department of Otorhinolaryngology,Osaka Medical Collage,Osaka 569-0801