IL6 and endometriosis: Concentrations of seven different cytokines (i.e. IL-2, IL-4, IL-6, IL-10, CCL2, CXCL10, and CCL11) were simultaneously determined using cytometric bead array and results showed that based on the panel of these cytokines and clinical data it was not possible to predict the presence of endometriosis in a group of symptomatic patients40.