aDivision of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taipei, Taiwan, R.O.C.
bCenter for Geriatrics and Gerontology, Taichung Veterans General Hospital, Taipei, Taiwan, R.O.C.
cCenter for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.
dDepartment of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.
eNational Yang-Ming University School of Medicine, Taipei, Taiwan, R.O.C.
fInstitute of Medical Technology, National Chung-Hsing University, Taichung, Taipei, Taiwan, R.O.C.
gInstitute of Health and Welfare Policy, National Yang-Ming University, Taipei, Taiwan, R.O.C.
*Correspondence to: Dr Liang-Kung Chen, Department of Family Medicine, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei 112, Taiwan, R.O.C
E-mail: [email protected]
Received: August 24, 2007; • Accepted: February 13, 2008.