Guío, José Ismael, Óscar A. García, and Maryury Liliana Buitrago. 2015. “Frequency of Cancer in Patients With Mammary Ultrasound BI-RADS 4A”. Journal of Medicine and Surgery Repertoire 24 (3): 220-26. https://doi.org/10.31260/RepertMedCir.v24.n3.2015.620.