Rainer Storb, MD, Fred Hutchinson Cancer Research Center, Seattle, WA, outlines the differences between cord and haploidentical donor sources in SAA and also evaluates the efficacy of haploidentical as a preferred donor source to cord in severe aplastic anemia (SAA). This interview took place at the 5th International Congress on Controversies in Stem Cell Transplantation and Cellular Therapies (COSTEM) 2019, held in Berlin, Germany.