一个癌性肿瘤通常是患有癌症的标志。
关于癌症危险性的动物实验显示，这还可能是如青春期等发育阶段额外卡路里耗费的一个标志。
It could also be a marker for extra calories consumed in growth periods like adolescence, a suggested cancer risk seen in animal research.
有大量的研究表明它们并不是很好的标志物，因为甲胎蛋白和其他两个标志物也仅仅在晚期癌症表达更加常见。
There is a good deal of data to suggest that they are not very good markers because alpha fetoprotein and these other two markers are also more common and more commonly expressed in advanced cancers.
应用推荐