"0"^^ . . . . . . "114736510"^^ . . "prostate specific antigen"^^ . . . "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"@en-us . . . "113894724"@en-us . "14736510-n"^^ . "prostate specific antigen"@en-us . . "0"^^ . "PSA"@en-us .