Chen Wen G
Sensory and Motor Disorders of Aging Section, Behavioral and Systems Neuroscience Branch, National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892, USA.
Ann N Y Acad Sci. 2009 Jul;1170:702-7. doi: 10.1111/j.1749-6632.2009.04596.x.