to investigate whether the functions of 11 beta- and 18-hydroxylase are parallel in the human adrenal cortex , we measured urinary free deoxycorticosterone ( doc ) , free 18-hydroxy-doc ( 18-oh-doc ) , and free corticosterone ( b ) in 22 subjects ( aged 3 6/12 to 19 yr ) before and after metyrapone administration and acth infusion .
C0000173
18-hydroxy-doc
C0011710
doc