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1: JAMA. 2000 Nov 22-29;284(20):2632-9.Click here to read Links
Comment in:
JAMA. 2002 Nov 27;288(20):2598.

A 44-year-old woman with difficulty walking.

Harvard Medical School, Boston, MA, USA.

PMID: 11086372 [PubMed - indexed for MEDLINE]