Below are possible answers for the crossword clue "Don't do drugs!" ad, e.g.
3 letter answer(s) to "don't do drugs!" ad, e.g
PSA
a protein manufactured exclusively by the prostate gland; PSA is produced for the ejaculate where it liquifies the semen and allows sperm cells to swim freely; elevated levels of PSA in blood serum are associated with benign prostatic hyperplasia and prostate cancer
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