2Tatemoto K, Hosoya M, Habata Y, et al. Isolation and characterization of a novel endogenouse peptide ligmld for the human APJ receptors[ J]. Biochem Biophys Res Commun, 1998,251:471 -476.
3Stewart D J, Levy RD, Cernacek P, et al. Increased plasma endothe-lin-1 in pulmonary hypertension:marker or mediator of disease [ J ]. Ann Intern Med, 1991,114:464 - 469.