Analysis of bone marrow transplantation data in man

The use of bone marrow transplantation has increased rapidly since 1970; more than 2500 transplants will be performed in 1986. In this review I consider alternative approaches to analysis of data of bone marrow transplantation in man. The advantages and limitations of single-centre and pooled data analyses are considered. I suggest that both are needed and are complementary. Finally, I review the activities of the International Bone Marrow Transplant Registry and indicate future directions for collaborative research.