Fig 1: ELISA analysis of selected secreted protein levels in tissue samples. Box plots representing the concentration of PLA2G2A (A), ANGPTL7 (B) and PLA2G5 (C) measured by ELISA in tissue samples across each endometriosis subtype and control endometrium. The y-axis represents protein concentration (as indicated as y-axis title), while the x-axis represents the sample groups. Statistical significance between groups was determined using Wilcox test and actual p-values are displayed. Alt text: Box plots showing ELISA-based quantification of selected secreted proteins in tissue samples from different endometriosis subtypes and control endometrium.