Regulatory T-cell Number in Peripheral Blood at 1 Year Posttransplant as Predictor of Long-term Kidney Graft Survival oleh David San Segundo, PhD, Luis H. Galván-Espinoza, MD, Emilio Rodrigo, MD, PhD, Juan Irure, BSc, Juan C. Ruiz, MD, PhD, Gema Fernández-Fresnedo, MD, PhD, Laura Riesco, BSc, Jairo Bada, MD, Lara Belmar, MD, Marcos Lopez-Hoyos, MD, PhD