Extraction/chromatographic testosterone RIA can be used as the "gold standard" for determining the reliability of direct testosterone immunoassay measurements.
Stanczyk
Frank Z
FZ
D002845:Chromatography; D006801:Humans; D007118:Immunoassay / Q000592:standards; D011863:Radioimmunoassay / Q000379:methods; D013739:Testosterone / Q000097:blood*
D013739:Testosterone