Moreira, Fernando Alves, et al. “ National Examination of Brazilian Residents and Specialization Trainees in Radiology and Diagnostic Imaging: A Tool for Evaluating the Qualifications of Future Radiologists ”. Clinics, vol. 62, no. 6, Jan. 2007, pp. 691-8, https://doi.org/10.1590/S1807-59322007000600006.