An immunohistochemical study on the regulation of estrogen receptor α by estradiol in the endometrium of the immature ewe Ana Meikle, Alejandro Bielli, Britt Masironi, Graciela Pedrana, Hong Wang, Mats Forsberg and Lena Sahlind Reprod. Nutr. Dev., 40 6 (2000) 587-596 DOI: 10.1051/rnd:2000102