We found that among children and adolescents with hematologic cancer, survival
rates were similar after single-unit and double-unit cord-blood transplantation; however,
a single-unit cord-blood transplant was associated with better platelet recovery
and a lower risk of GVHD. (Funded by the National Heart, Lung, and Blood Institute
and the National Cancer Institute; ClinicalTrials.gov number, NCT00412360.)