Schmillevitch, J.; Chammas, M. C.; Pugliese, V.; Abdala, E.; Rizzon, A. C.; Alves, V.; Carneiro, L. A.; Cerri, G. Acoustic Radiation Force Impulse (ARFI) Elastography Compared With Biopsy for Evaluating Hepatic Fibrosis After Liver Transplantation: A Cross-Sectional Diagnostic Study. Sao Paulo Med J 2016, 134, 513-518.