What does f/t PSA stand for?

f/t PSA stands for free-to-total serum prostate-specific antigen

This definition appears rarely

Samples in periodicals archive:

3 Egawa S et al. The ratio of free to total serum prostate specific antigen and its use in differential diagnosis of prostate carcinoma in Japan. Cancer 1997; 79: 90-98. 3. 3.