The FDA approved the PSA test for use in conjunction with a DRE to help detect prostate cancer in men 50 and older, and for monitoring prostate cancer patients after treatment.
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德国研究人员提取了101位年轻男性和女性嘴里的细胞样本,并且在样本中检测一种被称为COMT的基因。
The German researchers took samples of cells from inside the mouths of 101 young men and women and tested them for a gene called COMT.