2012-08-162012-08-162004-06Richmond, J. R., Babcock, C. F. & Mayo, H. G. (2004). Are beta-2-agonists or anticholinergics more effective for treating COPD?. Journal of Family Practice, 53(6), 494-496. Retrieved from http://hdl.handle.net/2152.5/11290094-35091533-7294http://hdl.handle.net/2152.5/1129To view this item, the user must be on-campus.enArticle