A comparison between ultrasonography and single-phase computed tomography for preoperative assessment of solid abdominal tumors in children oleh Iara Regina Siqueira Lucena, Márcio Fernandes Chedid, Paola Santis Isolan, Eliziane Emy Takamatu, Ronaldo Albé Lucena, Flavia Heinz Feier, Álvaro Porto Alegre Furtado, Jose Carlos Soares de Fraga