J. Grigsby, K. Kaye, J. Baxter, S.M. Shetterly, and R.F. Hamman.
Executive cognitive abilities and functional status among
community-dwelling older persons in the San Luis Valley Health and Aging
Study.
J Am Geriatr Soc, 46(5):590-596, 1998.
(bibtex:
Grigsby-1998-ECA).