Theodoropoulou, M., Arzberger, T., Gruebler, Y., Jaffrain-Rea, M. L., Schlegel, J., Schaaf, L., et al. (2004). Expression of epidermal growth factor receptor in neoplastic pituitary cells: evidence for a role in corticotropinoma cells. Journal of Endocrinology, 183(2), 385-394.