| 1. | " unlike other cancers , they progress rapidly , and they usually don t produce symptoms until they re advanced , " says oncologist judy l . smith , m . d . , at the roswell park cancer institute in buffalo
水牛城洛斯伟尔园癌症中心的肿瘤科医生裘蒂史密斯表示：胃癌和食道癌不同于其它癌症，它们的生长非常迅速，而且通常要到相当严重的时候才会有徵兆出现。 |
