PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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GROSS: CARDIOVASCULAR: HEART: Prosthetic Valve Bjork Shiley Mitral: Gross natural color opened left ventricle look up to valve in mitral position another is in aortic position that appears also to be a Bjork Shiley