Anderson, G., Autier, P., Beral, V., Bosland, M., Fernández, E., Haslam, S., . . . Berthiller, J. (2007). Combined estrogen-progestogen contraceptives.
Chicago-čujuhus (17. p.)Anderson, G., et al. Combined Estrogen-progestogen Contraceptives. 2007.
MLA-čujuhus (9. p.)Anderson, G., et al. Combined Estrogen-progestogen Contraceptives. 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.