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Reproductive Factors and Breast Cancer Risk. Effect of Age at Diagnosis

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At the lower end of the uterus is the cervix, a narrow opening. It isthrough the cervix that the sperm traveled on their way to the egg cell.Connecting the cervix to the outside of the body is the vagina. Thevagina is made up of muscular tissue. It is into the vagina that sperm areejaculated from the penis. Also, the vagina is the birth canal, throughwhich the infant passes as it leaves the mother’s body during childbirth.Unlike in males, the reproductive pathway in females is not combinedwith the pathway for excretion. The urethra, through which urine passesfrom the urinary bladder, ends...
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Reproductive Factors and Breast Cancer Risk. Effect of Age at Diagnosis

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