Iowa Code § 135.41: Publication.

The department, the Iowa medical society or any of its allied medical societies, the Iowa osteopathic medical association, any in-hospital staff committee, or the Iowa healthcare collaborative shall use or publish said material only for the purpose of advancing medical research or medical education in the interest of reducing morbidity or mortality, except that a summary of such studies may be released by any such group for general publication. In all events the identity of any person whose condition or treatment has been studied shall be confidential and shall not be revealed under any circumstances. A violation of this section shall constitute a simple misdemeanor.