National Cancer Institute (NCI), 9000 Rockville Pike, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
Hospital Regional de Talca, Talca, Chile
Universidad Catolica del Maule, Talca, Chile
Hospital Regional de Temuco, Temuco, Chile
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States
Dana Farber Cancer Institute, Boston, Massachusetts, United States
Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States
Memorial Sloan Kettering Cancer Center, New York, New York, United States