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A direct comparison of quantitative immunodiffusion and CF for IgG antibodies has not been previously reported. In a comparison of 368 samples, there was close concordance observed (360\/368\u00a0=\u00a097.8%) (P-value\u00a0&amp;lt;\u00a0.001). These tests can be considerably interchangeable in the reference laboratory setting.<\/jats:p>","DOI":"10.1093\/mmy\/myad121","type":"journal-article","created":{"date-parts":[[2023,12,8]],"date-time":"2023-12-08T04:43:57Z","timestamp":1702010637000},"source":"Crossref","is-referenced-by-count":1,"title":["Comparison of coccidioidal complement fixation and quantitative immunodiffusion serology at a reference laboratory"],"prefix":"10.1093","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4251-0178","authenticated-orcid":false,"suffix":"Jr","given":"Allen W","family":"Bryan","sequence":"first","affiliation":[{"name":"University of California, Davis, Department of Medical Microbiology and Immunology , Davis, CA , USA"},{"name":"University of California, Davis, Coccidioidomycosis Serology Laboratory , Davis, CA , 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