{{Cite journal| doi = 10.1016/j.rmed.2004.03.018| issn = 0954-6111 (Print) 0954-6111 (Linking)| volume = 98| issue = 10| pages = 932–7| last1 = Rutschmann| first1 = O. T.| last2 = Janssens| first2 = J. P.| last3 = Vermeulen| first3 = B.| last4 = Sarasin| first4 = F. P.| title = Knowledge of guidelines for the management of COPD: a survey of primary care physicians| journal = Respir Med| date = 2004-10-16| pmid = 15481268}}