[1] China Med Univ, Sch Nursing, Taichung, Taiwan
[2] Natl Def Med Ctr, Sch Nursing, Taipei, Taiwan
[3] Natl Def Med Ctr, Grad Inst Med Sci, Taipei, Taiwan
[4] Univ Washington, Sch Med, Dept Biobehav Nursing & Hlth Syst, Seattle, WA USA
[5] Univ Washington, Sch Med, Div Gastroenterol, Seattle, WA USA
[6] Natl Def Med Ctr, Sch Med, Taipei, Taiwan
[7] Triserv Gen Hosp, Dept Phys Med & Rehabil, Taipei, Taiwan
[8] Natl Def Med Ctr, Sch Publ Hlth, Taipei, Taiwan
[9] Triserv Gen Hosp, Songshan Branch, Taipei, Taiwan
[10] Triserv Gen Hosp, Dept Nursing, Songshan Branch, Taipei, Taiwan