Oxytocin is a peptidehormone produced in the hypothalamus and stored in the posterior pituitary gland until the hypothalamus signals its release. Oxytocin causes massive uterine contractions during birth.
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... of age or older. The median age is 39 years. For every 100 females there are 104.2 males. For every 100 females age 18 and over, there are 97.8 males.
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