If it is true that...

All maladies caused by estrogen excess develop in the same way that it interferes with pregnancy, by driving the tissue to require more energy and oxygen than can be delivered to it

Then it must be true that...

Estrogen can cause cancer, abnormal blood clotting, and infertility

If it is true that...

Estrogen was identified as a carcinogen in the first half of the 20th century

Then it must be true that...

Estrogen can cause cancer, abnormal blood clotting, and infertility

If it is true that...

Stimulation by estrogen doesn't produce the normal amount of carbon dioxide, leading to tissue experiencing oxygen deprivation, swelling, and cell division

Then it must be true that...

Estrogen can cause cancer, abnormal blood clotting, and infertility

If it is true that...

Toxic effects of estrogens were known by the middle of the 20th century

Then it must be true that...

Estrogen can cause cancer, abnormal blood clotting, and infertility