To the countless patients and their families who have battled cancer together; to the many gifted researchers who have persistently advanced the science of treating leukemia; to the devoted staff of the trio of hospitals in which my beloved Nancy spent the better part of a year; to my late mother, who taught me the ideals that led to my own career in medicine, showed me how to unearth the goodness in others, and exposed me to the beauty and power of the written word; and finally, to the anonymous donor who altruistically gifted his bone marrow to Nancy and, in so doing, gave her a chance at life.