The device that appears in this graphic is a representation of a Medtronic device. The graphic does not include certain identifying information that may appear on Medtronic devices, such as model number or serial number.
Butchart EG, Hui-Hua L, Payne N, et al. Twenty years' experience with Medtronic Hall valve. J.Thorac Cardiovasc Surg. 2001; 121:1090-100.
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