IHC localization of PAEP, HOXA10, CALCA, HBEGF and CXCL14 in endometrial biopsies of women from fertile and infertile couples. Representative images of (A) PAEP, (B) HOXA10, (C) CALCA, (D) HBEGF and (E) CXCL14. Pictures F and G represent control staining where a primary antibody for LIF or HBEGF was excluded. Magnification, ×200.