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Yale Medicine School: Discovering a Mysterious Estrogen's Important Role in Pregnancy
May 04, 2022
NEW HAVEN, Connecticut, May 4 (TNSJou) -- Yale School of Medicine issued the following news:

When a woman becomes pregnant, her levels of estriol, one of the three common estrogens that are nearly undetectable before conception, skyrocket. However, scientists never knew what this hormone does or why levels of it build as they do.

Many researchers previously believed that this so-called "weak estrogen" was only a waste product or non-functional hormone. Now, Ya . . .

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