A Trump administration plan to make hospitals disclose their negotiated prices is spurring a battle between industry and patient advocates that could determine how far the White House will go with its initiative.

Friday marks the end of a public input period that has seen more than 750 comments on a proposed rule that would include upending the secret negotiations that determine how much insurers pay for treatments and care. The administration is expected to release a final rule in November. It would take effect Jan. 1, 2020.

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