BONE MARROW HAEMATOPOIESIS IN THE SECOND TRIMESTER OF FETAL LIFE IS STRONGLY BIASED TOWARDS B-LYMPHOPOIESIS AND IS SEVERELY IMPAIRED AT THE EBP-CBP TRANSITION IN DOWN SYNDROME - Roy, A; Cowan, G; Bohn, G; Hu, M; Tunstall-Pedoe, O; Ehsanullah, N; Chan, J; Mattar, C; Bennett, P; Vyas, P; Karadimitris, A; Roberts, I (2010)