A comparison of bronchodilating effects of salmeterol and oxitropium bromide in stable chronic obstructive pulmonary disease.
Respir Med. 1998 Feb;92(2):354-7. doi: 10.1016/s0954-6111(98)90121-4.
Respir Med. 1998.
PMID: 9616538
Free article.
Clinical Trial.