{{Cite journal| doi = 10.1136/bcr-2022-250557| issn = 1757-790X (Electronic) 1757-790X (Linking)| volume = 15| issue = 7| last1 = Celi| first1 = J.| last2 = Berger| first2 = A.| last3 = Lungu| first3 = A.| last4 = Grosgurin| first4 = O.| title = Westermark sign on chest X-ray in a patient following cardiac arrest due to massive pulmonary embolism| journal = BMJ Case Rep| date = 2022-07-20| pmid = 35850788}}