@article{doi:, author = {Crouch MA and Raney CK and Davis K}, title = {USe of the combination product ipratropium and albuterol in chronic obstructive pulmonary disease}, journal = {Archives of Internal Medicine}, volume = {159}, number = {13}, pages = {1499}, year = {1999}, doi = {}, URL = { + http://dx.doi.org/}, eprint = {/data/Journals/INTEMED/11947/ilt0712.pdf} }