Abstract:SUMMARY.During 1984-85, users of a solid-phase radioimmunoassay kit for LH and FSH had problems of both variability and bias in the assay of some EQAS specimens despite adequate internal QC. The cause has been identified as contamination of these specimens with Pseudomonas fluorescens.From mid-1984 onwards some users of the Chelsea Hospital for Women (CHW) solidphase kit for the immunoassay of luteinising hormone (LH) and follicle stimulating hormone (FSH) experienced difficulty in the assay of some (though no… Show more
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