Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author exact 053F5B2A-F0EE-11E1-A9DE-61C894A0A6B4 cql: author exact F3BC685C-F0ED-11E1-A9DE-61C894A0A6B4 Add to list Journal Article A1 Validation of 5 routine assays for serum free testosterone with a candidate reference measurement procedure based on ultrafiltration and isotope dilution-gas chromatography-mass spectrometry Katleen Van Uytfanghe (UGent) , Dietmar Stöckl (UGent) , Jean Kaufman (UGent) , Tom Fiers (UGent) , Andreas De Leenheer (UGent) and Linda Thienpont (UGent) (2005) CLINICAL BIOCHEMISTRY. 38(3). p.253-261