Xavier, A. C.; Lacerda, I. V. B.; Oliveira, M. L.; Lima, F. F.; Lima, F. R. A. Method for Calibration of the NaI(Tl) 3”x3” Detector for in Vivo Measurements in Patients Undergoing Radioiodine Therapy and Occupationally Exposed Individuals to 131I. Sci. Plena 2012, 8.