3Ren YC, Wang L, He HB, et al. Pulmonary selectivity and local phar- macokinetics of ambroxol hydroehloride dry powder inhalation in rat [J]. J Pharm Sci,2009,98(5) :1797 - 1803.
4Yazkan R, Ozpolat B, Sahlnalp S. Diagnosis and management of post - traumatic pulmonary pseudocyst [ J ]. Respir Care, 2009,54 ( 4 ) : 538 - 541.