@article{doi:10.1001/archinte.1989.00390030044008, author = {Braun SR and McKenzie WN and Copeland C and Knight L and Ellersieck M}, title = {A comparison of the effect of ipratropium and albuterol in the treatment of chronic obstructive airway disease}, journal = {Archives of Internal Medicine}, volume = {149}, number = {3}, pages = {544-547}, year = {1989}, doi = {10.1001/archinte.1989.00390030044008}, URL = { + http://dx.doi.org/10.1001/archinte.1989.00390030044008}, eprint = {/data/Journals/INTEMED/17033/archinte_149_3_008.pdf} }