Transcatheter aortic valves

A. Medtronic CoreValve; B. Medtronic CoreValve Evolut R; C. St. Jude Portico Hero valve; and D. Edwards Sapien 3 valve.

Panels A, B: Reproduced with permission. Copyright © 2017 Medtronic.
Panel C: Reproduced with permission. Copyright © 2017 St. Jude Medical.
Panel D: Reproduced with permission. Copyright © 2017 Edwards Lifesciences Corporation.

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