title: Is the WHO 90:10 prostate-specific antigen (PSA) first international reference standard really 90% α1-antichymotrypsin-bound PSA and 10% free PSA?
authors: Lori J
authors: LJ
authors: Sokoll
authors: Steven
authors: S
authors: Rosenwald
authors: Jeremy
authors: J
authors: Lyons
authors: Debra J
authors: DJ
authors: Elliott
authors: Daniel W
authors: DW
authors: Chan
mesh_terms: D006801:Humans; D017430:Prostate-Specific Antigen / Q000378:metabolism* / Q000592:standards*; D011485:Protein Binding; D012015:Reference Standards; D014944:World Health Organization; D000514:alpha 1-Antichymotrypsin / Q000378:metabolism*
chemical_list: D000514:alpha 1-Antichymotrypsin; D017430:Prostate-Specific Antigen