Cerci JJ, Takagaki TY, Trindade E, Morgado R, Morabito F, Musolino RS, et al. 2-[<sup>18</sup>F]-fluoro-2-deoxy-D-glucose positron-emission tomography is cost-effective in the initial staging of non-small cell lung cancer patients in Brazil. Radiol Bras 2012;45:198-204