title: Are the atoll and reversed halo signs different tomographic patterns?
authors.affiliation: Federal University of Rio de Janeiro, Rua Thomaz Cameron 438, Valparaiso CEP 25685.120, Petrópolis, Rio de Janeiro, Brazil.
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger
authors.forename: Marcos Duarte
authors.initials: MD
authors.lastname: Guimarães
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger
mesh_terms: D005260:Female; D006801:Humans; D055370:Lung Injury / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D011014:Pneumonia / Q000175:diagnosis* / Q000209:etiology*; D011658:Pulmonary Fibrosis / Q000175:diagnosis* / Q000209:etiology*; D014057:Tomography, X-Ray Computed / Q000379:methods*