Estrogen
Estrogen was a female steroid hormone produced by the ovaries and by the adrenal cortex, placenta, and male testes.

In 2372, after transferring Keiko O'Brien's baby to Kira Nerys, Doctor Julian Bashir had to stimulate Kira's estrogen and progesterone production to enable the baby to metabolize Bajoran nutrients. ()

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Biochemical compounds