Incidence and morphological characteristics of the reversed halo sign in patients with acute pulmonary embolism and pulmonary infarction undergoing computed tomography angiography... oleh Alexandre Dias Mançano, Rosana Souza Rodrigues, Miriam Menna Barreto, Gláucia Zanetti, Thiago Cândido de Moraes, Edson Marchiori