[1] Taichung Armed Forces Gen Hosp, Div Rheumatol Immunol Allergy, Dept Internal Med, Taichung 411, Taiwan
[2] Taichung Armed Forces Gen Hosp, Dept Lab, Taichung 411, Taiwan
[3] Cent Taiwan Univ Sci & Technol, Dept Med Lab Sci & Biotechnol, Taichung 406, Taiwan
[4] Triserv Gen Hosp, Div Rheumatol Immunol Allergy, Dept Internal Med, Natl Def Med Ctr, Taipei 114, Taiwan
[5] Jan Ai Gen Hosp, Dept Neurosurg, Taichung 412, Taiwan
[6] Triserv Gen Hosp, Dept Neurosurg, Natl Def Med Ctr, Taipei 114, Taiwan
[7] Cent Taiwan Univ Sci & Technol, Coll Nursing, Taichung 406, Taiwan
[8] Taichung Vet Gen Hosp, Dept Neurosurg, Taichung 407, Taiwan