[1] Mackay Mem Hosp, Dept Internal Med, Div Pulm & Crit Care Med, Taipei 10449, Taiwan
[2] Mackay Jr Coll Med Nursing & Management, Taipei, Taiwan
[3] Mackay Mem Hosp, Dept Thorac Surg, Taipei 10449, Taiwan
[4] Mackay Mem Hosp, Dept Radiat Oncol, Taipei 10449, Taiwan
[5] Natl Taiwan Univ, Inst Pharmacol, Taipei 10764, Taiwan
[6] Mackay Mem Hosp, Dept Internal Med, Div Gastroenterol, Taipei 10449, Taiwan
[7] Mackay Mem Hosp, Dept Cardiol, Taipei 10449, Taiwan
[8] Mackay Mem Hosp, Dept Family Phys, Taipei 10449, Taiwan
[9] Mackay Mem Hosp, Dept Nursing, Taipei 10449, Taiwan
[10] Semmelweis Univ, H-1085 Budapest, Hungary
[11] Taipei Med Univ, Shuang Ho Hosp, Sch Med, Taipei, Taiwan
[12] Taipei Med Univ, Shuang Ho Hosp, Dept Radiat Oncol, Taipei, Taiwan
[13] Mackay Med Coll, Taipei, Taiwan
[14] Mackay Mem Hosp, Div Dept Emergency Med, Taipei 10449, Taiwan
[15] Taipei Med Univ, Grad Inst Injury Prevent & Control, Taipei, Taiwan