External quality assessment in small schemes: the case of 17-alpha-hydroxyprogesterone.
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GF
Tenovus Institute for Cancer Research, University College of Medicine, Heath Park, Cardiff, UK.
Walker
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Ford
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P
Riad-Fahmy
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D
D019326:17-alpha-Hydroxyprogesterone; D000312:Adrenal Hyperplasia, Congenital / Q000175:diagnosis*; D006801:Humans; D006908:Hydroxyprogesterones / Q000592:standards*; D007231:Infant, Newborn; D011785:Quality Assurance, Health Care; D011933:Reagent Kits, Diagnostic; D006113:United Kingdom
D006908:Hydroxyprogesterones; D011933:Reagent Kits, Diagnostic; D019326:17-alpha-Hydroxyprogesterone