After working as a cancer cell biologist Caryle Hirsberg, from the Institute of Medical Sciences of , California, began to investigate more than 3500 referencies to spontaneous remissions that were published in The Remission Project: an annotated bibliography. She also produced the PBS series The Heart of Healing and wrote Remarkable Recovery: what extraordinary healings tell us about getting well and staying well. She works as a Patient Advocacy , assisting people with cancer to make the best choices in healing .