title: In Reply.
authors: Hubert W
authors: HW
authors: Vesper
authors: Julianne Cook
authors: JC
authors: Botelho
authors: Susan S-C
authors: SS
authors: Tai
authors: Katleen
authors: K
authors: Van Uytfanghe
authors: Linda M
authors: LM
authors: Thienpont
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D053719:Tandem Mass Spectrometry / Q000379:methods*; D013739:Testosterone / Q000097:blood* / Q000592:standards*
chemical_list: D013739:Testosterone