The court ruled against a law that requires abortion doctors to have admitting privileges at a local hospital.
Three doctors work at the Jackson Women's Health Organization, but only one of them meets this requirement.
Seven hospitals have denied the other 2 doctors' requests because of their clinic's practice.
The state argued that women who want abortions can go to other states.
But the court ruled women should be able to get abortions in their own state.
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