in a population and family study we have examined the relationship between hla types , classical congenital adrenal hyperplasia ( cah ) , and variants of 21 hydroxylase ( 21 oh ) deficiency detected by increased blood levels of 17 hydroxyprogesterone ( 17 po ) in response to acth after overnight suppression with dexamethasone ( 'short synacthen test ' ) .
C0020387
17
C0033308
po