So I studied her mammogram, and I reviewed the radiology literature, and I was shocked to discover that, in her case, our chances of finding a tumor early on the mammogram were less than the toss of a coin.
于是我仔细看了她的乳房X光片， 我查阅了放射学文献， 我震惊地发现， 在她的情况下， 在乳房X光片中发现早期肿瘤的可能性， 竟然小于50%.