1. Abel, F.L., Pierce, J.H., Guntheroth, W.G.: Baroreceptor influence on postural changes in blood pressure and carotid blood flow. Amer. J. Physiol. 205, 360–364 (1963)
2. Abramson, D.I., Lichtman, S.S.: Influence of ergotamine tartrate upon peripheral blood flow in subjects with liver disease. Proc. Soc. exp. Biol. (N.Y.) 37, 262–267 (1937)
3. Abreu, B.E., Liddle, G.W., Handley, C.A., Elliott, H.W.: Preliminary observations on the influence of ergotamine and dihydroergotamine on cerebral blood flow in the dog. Fed. Proc. 6, 304 (1947)
4. Abreu, B.E., Liddle, G.W., Burks, A.L., Simon, A., Sutherland, V., Gordan, G.S.: Effects of amphetamine, dihydroergotamine and methadon on human cerebral blood flow and oxygen uptake. Fed. Proc. 7, 201 (1948)
5. Achari, G., Ahmad, M.: Antiarrhythmic activity of cyproheptadine and methysergide. Indian Heart J. 18, 4–16 (1966)