https://www.selleckchem.com/pr....oducts/brefeldin-a.h
5% pet. (Cohen's kappa 0, 95% confidence interval [CI] -0.02 to 0.02)], to only weak concordance for quaternium-15 [Cohen's kappa 0.22, 95%CI 0.16 to 0.28)], where Cohen's kappa value of 1 would indicate full concordance. Formaldehyde 2% aq. is an inadequate screen for contact allergy to the formaldehyde releasers, which should be considered for inclusion in any series dependant on the frequency of reactions to and relevance of each individual allergen. Formaldehyde 2% aq. is an inadequate screen for contact allergy to the formaldeh
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