Discrepancies in hFSH Measurements by Two-Site IRMA in the Ovulatory Phase of the Menstrual Cycle

Perry B Chapman RS McConway MG Griffin D Beastall GH . Specificity of two-site immunometric assays. Ann Clin Biochem 1991; 28: 83–6.

McConway MG Biggart EM Chapman RS . Performance of the two-site immunometric assay for serum thyroid stimulating hormone. J Immunol Methods 1987; 104: 87–92.

McConway MG Bell MA Chapman RS . Automation of solid-phase radioimmunoassays for prolactin, luteinising hormone and follicle-stimulating hormone using Dynospheres® and the Kemtek 3300. Ann Clin Biochem 1989; 26: 292–3.

Jeffcoate SL . Standards for peptide hormones: Principles, practice and problems. In: Middle J. (ed). Proceedings of the External Quality Assessment Schemes Participants Meeting, 1990 Apr 3–5, Cardiff. Cardiff: UKEQAS, 1990: 1–8.

Padmanabhan V Lang LL Sonstein J Kelch RP Beitins IZ . Modulation of serum follicle stimulating hormone bioactivity and isoform distribution by estrogenic steroids in normal women and in gonadal dysgenesis. J Clin Endocrinol Metab 1988; 67: 465–73.

Seth J Hanning I Bacon RRA Hunter WM . Progress and problems in immunoassays for serum pituitary gonadotrophins: Evidence from the UK External Quality Assessment Schemes 1980–88. Clin Chim Acta 1989; 186: 67–82.