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Previous Volume 338:995 April 2, 1998 Number 14 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

	Full Text Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited Related Article by Toh, B.-H. Related Article by Toh, B.-H.

To the Editor: The article by Toh et al. (Nov. 13 issue) ¹ on pernicious anemia includes a discussion of the neurologic complications of this disorder. The authors ignore a major point, which is that the neurologic manifestations of vitamin B₁₂ deficiency can occur in a patient with a normal hematocrit and normal red-cell indexes. This lack of parallelism between megaloblastic anemia and neurologic signs is an obstacle to the early diagnosis of neurologic disease due to vitamin B₁₂ deficiency. This concept is supported by a series of 141 patients with neuropsychiatric disorders caused by cobalamin deficiency, of whom 40 (28 . . . [Full Text of this Article]

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