Carvalho, S.M., Costa, A.P.M., Ramos, C.D., Brunetto, S.Q. and Bonifácio, D.A.B. 2018. Impact of the counts density of calibration image and the image reconstruction parameters in 131I SPECT image quantification. Brazilian Journal of Radiation Sciences. 6, 1 (Jan. 2018). DOI:https://doi.org/10.15392/bjrs.v6i1.332.