2Wu AH, Smith A.Biological variation of the natriuretic peptidesand their role in monitoring patients with heart failure[J] .Eur J Heart Fail, 2004,6 : 355 - 358.
9Moruzzi P, Doria E, Agostini PG, et al .Usefulhess of Ithyroxine to imrove cardiac and exercise performance inidiopathic dilated cardiomyopathy [J] .Am J Cardiol, 1994, 73: 374.