I am a pediatric oncologist and associate professor in the division of bone marrow transplantation at Cincinnati Children’s Hospital Medical Center. I have a clinical and research interest in graft versus host disease because this is the most significant, devastating and life-impacting complication after a bone marrow transplant. I led the study in children of high dose oral vitamin A and showed that when given before starting chemotherapy, vitamin A reduces acute gastrointestinal and chronic graft versus host disease. I am now collaborating with 3 adult BMT programs to try and validate my findings in adult BMT patients as adults tend to have more chronic GVHD than children and I would like to extend this easy and effective strategy to patients of all ages across the US and worldwide.