2Rosen S M. Biomarkers of chemical exposure: a new frontier in clinical chemistry[ J]. IVD Technology, 1996(2) : 22.
3Oesterling J E,Jacobsen S J,Klee G,et al.Free,complexed and total serum prostate specific antigen:The establishment of appropriate reference ranges for their concentration and rations[J].Urol,1999,154:1090-1095.
4Catalone W J,Smith D S,Ratliff T L et al.Evaluation of percentage of free serum prostate specific antigen to improve specificity of prostate cancer screening[J].AMA,2001,265:983-999.
5Paus E,Nilsson O,Ole P,et al.Stability of free and total serum prostate specific antigen in serum from patients with prostate carcinoma and benign hypetrpoasia[J],Urol,1998,159:1599-1650.