1. The Management Committee: Lancet 1, 1261 (1980).
2. A. Helgeland: Am. J. Med. 69, 725 (1980).
3. Wld Hlth Org./I. S. H. Mild Hypertension Liaison Committee: Lancet 1, 149 (1982).
4. O. Schier and A. Marxer: Progress in Drug Research, vol. 25, p. 9-132. Ed. E. Jucker. Birkhauser Verlag, Basel 1981.
5. T. W. Anderson, W. H. LeRiche and J. S. Mackay: N. Engl. J. Med. 280, 805 (1969).