This issue of Hematology/Oncology Clinics, Guest Edited by Drs. Edward Snyder and Eric A. Gehrie, with Consulting Editors George P. Canellos and H. Franklin Bunn, will focus on Transfusion Medicine. Topics include, but are not limited to, Pathogen Reduction, Transfusion Reactions-Infectious Complications, Txn Rxn-Non-Infectious Complications, Iron Deficiency and Teen Blood Donors, Advances in RBC Serology, Advances in Immunotherapy, Therapeutic Monoclonal Antibody Effect on RBC Compatibility Testing, Cell Therapy-New Regulations and Standards, Alternatives to Platelet and RBC Transfusions, New Hemostatic Agents, Tx Practices for Children with Cancer, and Relevance of Cold Platelets and WB to the Bleeding Oncology Patient.