e) Materials that inform the pregnant woman that there is a direct link between abortion and breast cancer. It is scientifically undisputed that full-term pregnancy reduces a woman’s lifetime risk of breast cancer. It is also undisputed that the earlier a woman has a first full-term pregnancy, the lower her risk of breast cancer becomes, because following a full-term pregnancy the breast tissue exposed to estrogen through the menstrual cycle is more mature and cancer resistant. In fact, for each year that a woman’s first full-term pregnancy is delayed, her risk of breast cancer rises 3.5 percent. The theory that there is a direct link between abortion and breast cancer builds upon this undisputed foundation. During the first and second trimesters of pregnancy the breasts develop merely by duplicating immature tissues. Once a woman passes the thirty-second week of pregnancy (third trimester), the immature cells develop into mature cancer resistant cells. When an abortion ends a normal pregnancy, the woman is left with more immature breast tissue than she had before she was pregnant. In short, the amount of immature breast tissue is increased and this tissue is exposed to significantly greater amounts of estrogen—a known cause of breast cancer. Women facing an abortion decision have a right to know that such medical data exists. At the very least, women must be informed that it is undisputed that pregnancy provides a protective effect against the later development of breast cancer.