Practice-Changing Use of the 21-Gene Test for the Management of Patients With Early-Stage Breast Cancer in Latin America oleh Henry L. Gomez, Juan E. Bargallo-Rocha, Roberto J. Billinghurst, Aníbal R. Núñez De Pierro, Federico A. Coló, Lisandro L. B. Gil, Carola Allemand, Ignacio L. McLean, Mauricio Lema-Medina, Fernando Herazo-Maya, Francisco J. Terrier, Raquel G. Cwilich, Mauricio Leon, Silvia G. Falcon, Roberto E. Castaño, Sergio C. Oliveira, Debbie M. Jakubowski, Calvin Chao