Aortic Stenosis, Subvalvular |
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| Aortic Stenoses, Subvalvular; Aortic Subvalvular Stenoses; Stenoses, Aortic Subvalvular; Stenoses, Subvalvular Aortic; Stenosis, Aortic Subvalvular; Stenosis, Subvalvular Aortic; Subvalvular Aortic Stenoses; Subvalvular Stenoses, Aortic | |
| A narrowing of the aorta in the region below the aortic valve. | |