title: Determinants of the amplitude of the aortic component of the second heart sound in aortic stenosis.
mesh_terms: D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000503:physiopathology*; D001024:Aortic Valve Stenosis / Q000151:congenital / Q000175:diagnosis* / Q000503:physiopathology; D002114:Calcinosis / Q000175:diagnosis* / Q000503:physiopathology; D006328:Cardiac Catheterization; D003937:Diagnosis, Differential; D006326:Heart Auscultation; D006347:Heart Sounds; D006439:Hemodynamics; D006801:Humans; D008875:Middle Aged