There is no cephalocaudal gradient of computed tomography densities or lung behavior in supine patients with acute respiratory distress syndromeEl-Dash SA, Borges JB, Costa EL, Tucci MR, Ranzani OT, Caramez MP, Carvalho CR, Amato MBJul 1, 2016Ranzani OTGroup LeaderI am an epidemiologist.