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Cardiology|January 1, 1995
Ectopic thyroid tissue in the ventricular outflow tract: embryologic implicationsM Porqueddu, C Antona, G Polvani, et al.
Cardiology|January 1, 1979
Discrete fibromembranous aortic stenosis in middle age. Natural history and case reportA M Greenspan, J Morganroth, J K Perloff
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