2Sanchez O, Trinquart L, Caille V, et al. Prognostic factors for pulmonary embolism: the prepstudy, a prospective muhi- center cohort study[J]. Am Respir Crit Care Med,2010,181 (2) :168-173.
3Matera MG, Calzetta L, Parascandolo V, et al. Relaxant effect of brain natriurefie peptide in nonsensifized and passively sensitized isolated human bronchi [ J ]. Pulm Pharmacol T- her, 2009,22 (6) : 478 -482.