Dept. of Mol. Biochem. & Clin. Invest., Osaka Univ. Grad. Sch. of Med.

Dept. of Mol. Biochem. & Clin. Invest., Osaka Univ. Grad. Sch. of Med.

Dept. of Gastroenterol. and Hepatol., Kochi Univ. Sch. Of Med.

Dept. of Gastroenterol. and Metabol. Hiroshima Univ. of Grad. Med.

Dept. of Gastroenterol. Osaka City Juso Hosp.

Dept. of Gastroenterol. and Hepatol., Kyoto Pref. Univ. of Grad. Med.

Dept. of Mol. Biochem. & Clin. Invest., Osaka Univ. Grad. Sch. of Med.

Dept. of Mol. Biochem. & Clin. Invest., Osaka Univ. Grad. Sch. of Med.