 Bone Marrow Donors Worldwide

World Marrow Donor Association (WMDA) is an organization based in Leiden, Netherlands, that coordinates the collection of the HLA phenotypes and other relevant data of volunteer hematopoietic cell donors (used to perform what used to be called bone marrow transplants, but now referred as hematopoietic cell transplants) and cord blood units across the globe.The global database with volunteer donors was founded in the Netherlands in 1988.