Allogeneic marrow transplantation has made major advances in the treatment of both malignant and benign diseases. The management of allograft patients is complex. It requires close collaboration between all the health care providers in order to obtain the best therapeutic results. The return of the patient after a difficult period of care and treatment in his personal, social and professional life is the greatest reward for the transplant team. The information in this book is intended for all health care providers, including physicians, nurses, pharmacists, laboratory technicians, nutritionists, and others, to facilitate the understanding and management of basic care. With this manual, we hope to provide the best results for patients.