The Texas Medical Center [is] a nearly 1,300-acre, 280-building complex of hospitals and related medical facilities, of which MD Anderson is the lead brand name. Medicine had obviously become a huge business. In fact, of Houston's top 10 employers, five are hospitals, including MD Anderson with 19,000 employees. How did that happen? Where's all that money coming from? And where is it going? I have spent the past seven months trying to find out by analyzing a variety of bills from hospitals like MD Anderson, doctors, drug companies and every other player in the American health care ecosystem. When you look behind the bills that ... patients receive, you see nothing rational - no rhyme or reason - about the costs they faced in a marketplace they enter through no choice of their own. The only constant is the sticker shock for the patients who are asked to pay. Yet those who work in the health care industry and those who argue over health care policy seem inured to the shock. Why exactly are the bills so high? What are the reasons ... that cancer means a half-million- or million-dollar tab? Why should a trip to the emergency room for chest pains that turn out to be indigestion bring a bill that can exceed the cost of a semester of college? What makes a single dose of even the most wonderful wonder drug cost thousands of dollars? Why does simple lab work done during a few days in a hospital cost more than a car? And what is so different about the medical ecosystem that causes technology advances to drive bills up instead of down?