[1] Natl Def Med Ctr, Grad Inst Life Sci, Taipei 114, Taiwan
[2] Acad Sinica, Inst Cellular & Organism Biol, 128 Acad Rd,Sect 2, Taipei 115, Taiwan
[3] Natl Taiwan Univ, Sch Dent, Grad Inst Clin Dent, Taipei, Taiwan
[4] Natl Taiwan Univ Hosp, Dept Dent, Taipei 100, Taiwan
[5] Acad Sinica, Inst Biomed Sci, Taipei 115, Taiwan
[6] Natl Taiwan Univ, Coll Med, Dept Pathol, Taipei 100, Taiwan
[7] Acad Sinica, Inst Chem, 128 Acad Rd,Sect 2, Taipei 115, Taiwan