title: Use of Youden plot for internal quality control in the immunoassay laboratory.
abstract: The Youden two-sample plot has been adapted for use in internal quality control in the immunoassay laboratory. It can be designed to show within-batch imprecision and drift as well as long-term between-batch reproducibility and is proposed as a method that is more economical and easily understood than other current plotting procedures.
mesh_terms: D005260:Female; D006801:Humans; D007118:Immunoassay; D007753:Laboratories / Q000592:standards*; D011374:Progesterone / Q000032:analysis; D011786:Quality Control
chemical_list: D011374:Progesterone