The British Bone Marrow Registry (BBMR) is a division of the NHS Blood and Transplant. The Northern Ireland and Scottish Blood Transfusion Services are participants in the service provided by the BBMR. The BBMR supports Clinical Transplantation Programmes. It recruits prospective stem cell donors from the blood donor population. The donors are tissue typed. They are then available to be searched by accredited Transplant Centres or laboratories acting on their behalf for patients with leukaemia and other blood disorders. After further testing a donor may be identified as a stem cell donor. Finally selected donors will receive a short course of Granulocyte Colony Stimulating Factor (G-CSF) i.e. daily subcutaneous injections for 3 days prior to attending the designated Collection Centre. The G-CSF is administered by agreement with the donor either at their home or their workplace. This is the substantive part of the service that this specification will cover. The donor will subsequently receive up to two further doses of G-CSF at the Collection Centre. Stem Cells are then collected from the donor as an outpatient procedure in a designated hospital or NBS Apheresis Collection Centre. In addition, the contractor will also be asked to provide the cost of a Pharmacy Service to the BBMR. To supply a) G-CSF to donors for 4 days as prescribed by a Designated Medical Practitioner. b) G-CSF as stock at a pre-defined level for the five BBMR Collection Centres. The contractor will also provide an ad hoc phlebotomy service where urgent blood samples are required for final donor clearance testing.