To address this question, soluble Hsp70 levels were measured using the Hsp70-exo ELISA [25], which is able to quantify free and microvesicle-associated Hsp70, and CECs were enumerated after isolation with cmHsp70.1 mAb- and EpCAM mAb-based bead approaches from patients with endometriosis and extra-uterine endometriosis. This evidence concerns the gene EPCAM and endometriosis.