{{Cite journal| doi = 10.1097/MEJ.0000000000000804| issn = 1473-5695 (Electronic) 0969-9546 (Linking)| volume = 28| issue = 5| pages = 355–362| last1 = Bianchi| first1 = C.| last2 = Ageron| first2 = F. X.| last3 = Carron| first3 = P. N.| title = Assessment of diagnostic strategies based on risk stratification for aneurysmal subarachnoid hemorrhage: a retrospective chart review| journal = Eur J Emerg Med| date = 2021-03-13| pmid = 33709998}}