title: Pulsed Doppler technique versus cardiac catheterization.
mesh_terms: D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D002675:Child, Preschool; D003327:Coronary Disease / Q000175:diagnosis; D004452:Echocardiography; D005260:Female; D006349:Heart Valve Diseases / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged