Fig. 1From: Immunoassay standardization for the detection of immunoglobulin A (IgA) against Porphyromonas gingivalis antigens in saliva of individuals with and without leprosya Average optic density for pools of individuals with leprosy and with periodontitis (L+P+) and individuals with leprosy and without periodontitis (L+P−). b Average optic density for pools of individuals without leprosy and with periodontitis (L−P+) and individuals without leprosy and without periodontitis (L−P−)Back to article page