Effect of the combination of two bronchodilators on breathlessness in patients with chronic obstructive pulmonary disease. A crossover clinical trial

Author: Sansores R.   Ramirez-Vanegas A.   Reddy C.   Mejia-Alfaro R.  

Publisher: Elsevier

ISSN: 0188-4409

Source: Archives of Medical Research, Vol.34, Iss.4, 2003-07, pp. : 292-297

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