title: Palla and Westermark Signs.
authors.forename: Daniel Seung-Hun
authors.initials: DS
authors.lastname: Lee
authors.forename: Hoang-Anh
authors.initials: HA
authors.lastname: Vo
authors.forename: Arie
authors.initials: A
authors.lastname: Franco
authors.forename: Jayanth
authors.initials: J
authors.lastname: Keshavamurthy
authors.forename: Eran
authors.initials: E
authors.lastname: Rotem
mesh_terms: D000208:Acute Disease; D006801:Humans; D011651:Pulmonary Artery / Q000000981:diagnostic imaging* / Q000473:pathology*; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000473:pathology*; D011859:Radiography; D014057:Tomography, X-Ray Computed