Correction
In the article "CSF Tests for AD," in the July 1999 issue of Neurology Alert, Ab42 throughout the article should have been Ab42. In the second paragraph of the commentary section, the first two sentences should read as follows: The multicenter study by Hulstaert et al provides another citation in support of the association between high CSF tau, low CSF Ab42 levels, and AD. However, this study does little to advance the clinical use of these markers for diagnostic purposes.
In CME question number 1, Ab42 should have been Ab42 throughout. We regret any confusion this may have caused.
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