1. Department of Public Health; College of Medicine; Fu-Jen Catholic University; New Taipei City; Taiwan
2. Research Center for Psychological and Educational Testing and Department of Educational Psychology and Counseling; National Taiwan Normal University; Taipei; Taiwan
3. Department of Bioenvironmental Engineering; Chung Yuan Christian University; Chung Li; Taiwan
4. Division of Gastroenterology; Department of Medicine; Sin-Lau Hospital; Tainan; Taiwan