1. Digestive Disease Center, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea.
2. The National Center of Efficacy Evaluation for the Development of Health Products Targeting Digestive Disorders (NCEED), Incheon, Korea.
3. Utah-Inha DDS & Advanced Therapeutics Research Center, Incheon, Korea.
4. Department of Occupational and Environmental Medicine, Inha University School of Medicine, Incheon, Korea.