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Comment
. 2011 Jul;17(7):888-9; author response 890.
doi: 10.1177/1352458511408477. Epub 2011 May 17.

Risk of multiple sclerosis is not associated with exposure to crude oil, but increases with a low level of education

Hongliang Zhang
Comment

Risk of multiple sclerosis is not associated with exposure to crude oil, but increases with a low level of education

Hongliang Zhang. Mult Scler. 2011 Jul.
No abstract available

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