Dr. John Hansen, Who Made Marrow Transplants Safer, Dies at 76

His research expanded the pool of donors whose bone marrow was less likely to be rejected by patients with leukemia and other blood disorders. SAM ROBERTS https://ift.tt/2Z6OJ7w https://ift.tt/2yU63OF The New York Times Health Bone Marrow, Transplants, Immune System, Research August 13, 2019 at 02:00AM