Gulf War syndrome firmly linked to chemical exposure

Nearly two decades after veterans of the 1991 Gulf War came home complaining of odd illnesses, enough evidence has been gathered to determine that many of them were sickened by chemical exposure, a study published Monday concluded.

And some of the damage was likely caused by pills prescribed to protect against the use of nerve gas and pesticides used to control sand flies, according to the study published in the Proceedings of the National Academy of Sciences.

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