The fourth edition of this leading text reflects the new direction and growth of the field of hematology as an academic and clinical discipline. Edited and written by practitioners who are the leaders of the field, the book covers both the basic scientific foundations of hematology and its clinical aspects. It provides practitioners with the most comprehensive, authoritative, up-to-date information in hematology. The table of contents has been thoroughly revised with many new chapters added, reflecting the rapidly changing nature of the molecular and cellular areas of the specialty. This definitive resource is the one comprehensive book needed by every practicing hematologist.