Stem cells: what's happening? Current concepts and recent advances

Allogeneic haemopoietic stem cells, as alternative to bone marrow transplantation and platelet therapy remains the focus of the current area of research/development in transfusion science/medicine. This brief progress report on "Stem Cells: What's Happening?" is focused on the advances and some unresolved problems associated with cellular therapy and haemopoietic progenitor cells from various sources.