ArticleMorreal CE, Dao TL, Nemoto T, Lonergan PA.
J Natl Cancer Inst. 1979 Nov;63(5):1171-4.
The daily excretion of estrone, estradiol, and estriol was determined for 22 normal women and 35 women with primary breast cancer. The excretion of the hormones (measured in microgram/24 hr) in the breast cancer group was elevated and showed a statistical significance of P less than 0.001. The same wide difference between the 2 groups was also noted when excretion was expressed in terms of the body area of the individuals and when women of similar ages were compared.