Simultaneous Analysis of T Helper Subsets (Th1, Th2, Th9, Th17, Th22, Tfh, Tr1 and Tregs) Markers Expression in Periapical Lesions Reveals Multiple Cytokine Clusters Accountable for Lesions Activity and Inactivity Status . J Appl Oral Sci 2014, 22 (4), 336-346. https://doi.org/10.1590/1678-775720140140.