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Cytokine and chemokine tear levels measured by multiplex bead immunoassay in normal subjects (CT; n = 14) and in patients with different active ocular allergic diseases: seasonal allergic conjunctivitis (SAC; n = 12), vernal keratoconjunctivitis (VKC; n = 18), atopic keratoconjunctivitis (AKC; n = 6) and contact lens related giant papillary conjunctivitis (GPC; n = 4). Bars represent the median value for each group. #P < 0·01; *≤ 0·05 compared to controls.
