{{Cite journal| doi = 10.2174/1874306401408010018| issn = 1874-3064 (Print) 1874-3064 (Electronic) 1874-3064 (Linking)| volume = 8| issue = 1| pages = 18–21| last1 = Kherad| first1 = O.| last2 = Bridevaux| first2 = P. O.| last3 = Kaiser| first3 = L.| last4 = Janssens| first4 = J. P.| last5 = Rutschmann| first5 = O. T.| title = Is Acute Exacerbation of COPD (AECOPD) Related to Viral Infection Associated with Subsequent Mortality or Exacerbation Rate?| journal = Open Respir Med J| date = 2014-05-07| pmid = 24799967}}