6Rutten F, Hoes A. B-type natriuretic peptide assasy for detecting heart failure in the elderly:same value as thros in the younge[ J]. Int J Car- diol, 2008, 125(2) : 161 - 165.
7Remme WJ, Swedberg K. Guidelines for the dignosis and treatment of chronic heart failure[ J ]. Eur Heart, 2001, 22 ( 17 ) : 1572 - 1560.
8Troughton RW, Frampton CM, Yandle TG, et al. Treatment of heart failure guided by plasma amino terminol brain natriuretis peptide ( N- B NP) concentrations [ J ]. Lanset, 2000, 355 ( 9210) : 1126 - 1130.