1. A breastfeeding protocol;Dutton;JOGN Nurs,1979
2. Cancer facts and figures, 1979;American Cancer Society,1979
3. Cancer statistics, 1977;Silverberg;CA,1977
4. Lactation and cancer of the breast;MacMahon;Bull WHO,1970
5. Some epidemiologic observations on cancer of the female breast;Cutler;Int J Radiat Oncol Biol Phys,1977