Andrade, T. G.; Fogaça, H. S.; Elia, C. C. S.; Pitrowsky, M. T.; de Souza, H. S. P. Crohn’s Disease Activity Assessed by Doppler Sonography: The Role of Aortic Flow Parameters. Clinics 2013, 68 (4), 457-462. https://doi.org/10.1590/clin.v68i4.76787.