title: Nonsurgical heart valve procedure spurs cost concerns.
authors.forename: Steven Ross
authors.initials: SR
authors.lastname: Johnson
mesh_terms: D001021:Aortic Valve; D002986:Clinical Trials as Topic; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000191:economics* / Q000379:methods*; D006801:Humans