Validation of automated image co-registration integrated into in-house software for voxel-based internal dosimetry on single-photon emission computed tomography images - Leitão, André Luiz Alberti; Fonda, Uysha de Souza; Buchpiguel, Carlos Alberto; Willegaignon, José; Sapienza, Marcelo Tatit (Radiologia Brasileira, 2023)