Neelissen, J.A. et al. 2000. Visualization of percutaneous 3H-estradiol and 3H-norethindrone acetate transport across human epidermis as a function of time. Acta Dermato-Venereologica. 80, 208 (May 2000), 36–43. DOI:https://doi.org/10.1080/000155500750042844.