[1] Wonkwang Med Sci Inst, Dept Microbiol & Immunol, Chonbuk 570749, South Korea
[2] Wonkwang Med Sci Inst, Dept Radiol, Chonbuk 570749, South Korea
[3] Wonkwang Med Sci Inst, Dept Digest Res Unit, Chonbuk 570749, South Korea
[4] Wonkwang Univ, Sch Dent, Dept Pathol, Chonbuk 570749, South Korea
[5] Inha Univ, Coll Med, Nitr Oxide Radical Toxicol Res Ctr, Inchon 402751, South Korea