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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Basal cytokine production. IL-10, IL-6, IL-1β, and TNFα levels in supernatants of untreated PBMCs of enrolled workers with salivary cortisol levels ≤ or > of 10 ng/mL. Data are reported as mean ± S.D. ** p-value ≤ 0.01; *** p-value ≤ 0.001.