1. A.C. Guyton, T.G. Coleman, A.W. Cowley, R.D. Manning, Jr., R.A. Norman, Jr. and J.D. Ferguson: Circ. Res. 35, 159 (1974).
2. A.C. Guyton, D.B. Young, J.W. DeClue, J.D. Ferguson, R.E. McCaa, A. Gevise, N.C. Trippado and J.E. Hall, in: G. Berglund, L. Hansson and L. Werkö (eds.): Pathophysiology and Management of Arterial Hypertension, Astra Pharmaceuticals A.B., Sweden 1975, p. 78.
3. B. Folkow, M. Hallbäck, Y. Lundgren, R. Sivertsson and L. Weiss: Circ. Res. 32 (Suppl. I), 1–2 (1973).
4. M.J. Peach: Physiol. Rev. 57, 313 (1977).
5. M.A. Ondetti and D.W. Kushman: J. Med. Chem. 24, 355 (1981).