indirect micromethods were designed for the assay of human renin ( lower limit 0.25 times 10-4 u and of antirenin to human renin ( lower limit 3 times 10-4 u ) , with the rat used for the bioassay of the angiotensin produced by the action of renin on renin substrate .
C0003018
angiotensin
C0003017
renin substrate