约翰鞋匠的 前列腺癌 diagnosis launched the self-described "data-driven" former tech executive on a months-long research project. 当他降落的时候 Dr. 彼得·卡罗尔的 office, he knew a great deal about 前列腺癌 and the nation's top experts who treat it. 仍然, he was startled to hear Carroll's advice: Track your cancer closely, 但在必要时再治疗.