Abstract
Prostate specific antigen (PSA) was first identified in 1969. It is a glycoprotein composed of 237 amino acids, which produces each gland, as it is required for normal sperm function.
Prostate specific antigen (PSA) was first identified in 1969. It is a glycoprotein composed of 237 amino acids, which produces each gland, as it is required for normal sperm function.
