Hematopoietic Cell Transplantation (HCT) - also known as bone marrow transplant - is only available at select centers in the United States which can collect and store stem cells, as well as care for patients before their new immune system cells take hold. For this reason, many patients who undergo HCT live at great distances from their HCT center. Also, after hospital discharge, the first 180 days post-HCT are very important, as patients must be managed closely with frequent follow-up visits.