- Inhibitors of the renin-angiotensin system in experimental hypertension, with a note on the measurement of angiotensin I, II and III during infusion of converting-enzyme inhibitor. Morton, J.J., Casals-Stenzel, J., Lever, A.F., Millar, J.A., Riegger, A.J., Tree, M. British journal of clinical pharmacology. (1979)