the negative av difference of doc , b , a , and f found in group i , however , decreased after labor and became even positive in the cases of b and f , reflecting the close relationship between spontaneous labor and the fetal adrenal 's active production not only of the glucocorticoids b and f , but also , to a lesser extent , of the mineralocorticoids doc and aldosterone .
C0022864
labor
C0474461
spontaneous labor