a radioimmunoassay for plasma 3 beta , 7 alpha-dihydroxy-5-androsten-17-one ( 7 alpha-hydroxy dha ) has been developed using anti-sera raised against 3 beta , 7 alpha-dihydroxy-5-androstene-17 beta-carboxyl-bovine serum albumin conjugate and [ 1 , 2 ( n ) - 3h ] 7 alpha-hydroxy dha as the radioligand .
C0032105
plasma
C0229671
sera