Hyera Kang1, Yasuhiro Takahashi2, Hirohiko Kakizaki3. 1. Aichi Medical University, Aichi, Japan; University of Seonam College of Medicine, Presbyterian Medical Center, Jeonju, Korea. 2. Aichi Medical University, Aichi, Japan. 3. Aichi Medical University, Aichi, Japan. Electronic address: cosme@d1.dion.ne.jp.