... International Agency for Research on Cancer, Lyons, France. Int J Cancer 1977 Nov;20(5):680-8.http://www.ncbi.nlm.nih.gov/pubmed/9246916. Quinn M, Babb P. Patterns and trends in prostate cancer incidence, ... 1971-1989. Int J Cancer 1999 May;81(4):551-4. http://www.ncbi.nlm.nih.gov/pubmed/102254434. Ilic D, O’Connor D, Green S, et al. Screening for prostate cancer: a Cochrane systematic review. Cancer Causes ... molecular forms. However, these derivatives and certain PSA isoforms (cPSA, proPSA, BPSA, iPSA) have limited usefulness in the routine clinical setting and have therefore not been considered for...