Adami H.-O., Johansson E. D. B., Vegelius J., and Victor A., “Serum Concentrations of Estrone, Androstenedione, Testosterone and Sex-hormone-binding Globulin in Postmenopausal Women with Breast Cancer and in Age-matched Controls”, ujms, vol. 84, no. 3, pp. 259-274, Sep. 1979.