title: A new microcolumn for steroid separation in radioimmunoassay.
mesh_terms: D000535:Aluminum; D002845:Chromatography / Q000295:instrumentation; D005069:Evaluation Studies as Topic; D005260:Female; D005898:Glass; D006801:Humans; D008722:Methods; D008832:Microchemistry; D011374:Progesterone / Q000097:blood*; D011863:Radioimmunoassay; D013739:Testosterone / Q000097:blood*; D014316:Tritium
chemical_list: D014316:Tritium; D013739:Testosterone; D011374:Progesterone; D000535:Aluminum