The improvement of acute lymphoblastic leukaemia was not due to a breakthrough in medication but resulted from learning how to better use the treatment available. "*During my career, for example, acute lymphoblastic leukemia, the most common cancer in children, shifted from 90 percent fatal to 90 percent curable. Little of this magnificent progress can be attributed to breakthrough drugs; most resulted from learning how to better use the treatments at hand. Similarly, we are beginning to recognize that by combining elements of care for young people with a first episode of psychosis, outcomes shift from disability to recovery.*" [[Book - Healing - Our Path from mental illness to mental health. Thomas insel]]