{{Cite journal| doi = 10.1136/thx.2006.065557| issn = 0040-6376 (Print) 1468-3296 (Electronic) 0040-6376 (Linking)| volume = 62| issue = 2| pages = 121–5| last1 = Rutschmann| first1 = O. T.| last2 = Cornuz| first2 = J.| last3 = Poletti| first3 = P. A.| last4 = Bridevaux| first4 = P. O.| last5 = Hugli| first5 = O. W.| last6 = Qanadli| first6 = S. D.| last7 = Perrier| first7 = A.| title = Should pulmonary embolism be suspected in exacerbation of chronic obstructive pulmonary disease?| journal = Thorax| date = 2006-11-15| pmid = 17101737}}