This book gives an updated review of the state of the art in regenerative cell therapy in the fields of cardiology, hematology, pediatrics, neurology, orthopedics and infectious diseases. The book emphasizes clinical advances as proof of concept in cell therapy based on the revolutionizing observation that regeneration can occur throughout the body even in highly differentiated organs like the heart and the neuronal system. It provides examples of breakthroughs in the clinical implementation of adult stem cell therapy.