Latest "toxic exposure" stories
The five-minute series of questions is designed to inform vets of new benefits they may be able to receive.
VA officials have urged all vets who believe they are eligible for the new benefits to apply soon.
The effort has collected more than 317,000 names but fails to present a full picture of the problem, researchers concluded.
Congress said officials could wait until 2026 to handle some claims, but White House officials have ordered VA to move faster.
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