References
- Akah P.A. Materia Medica Polona 1989, (in press)
- Bernett A., Symchowicz S., Taber I. Br. J. Pharmacol. 1968; 34: 484–492
- Bentley G. A., Sabine J. R. Br. J. Pharmacol. 1963; 21: 190–201
- Birmingham A. T., Wilson A. B. Br. J. Pharmacol. 1963; 21: 569–580
- Evans B., Iwayama T., Burnstock G. J. Pharmacol. Exp. Ther. 1973; 185: 60–69
- Furchgott R.F. Spiral-cut strips of rabbit aorta for in vitro studies of responses of arterial smooth muscle. Methods in Medical Research, H.O. Bruner. Year Book Medical Publishers Inc., Chicago 1960; Vol. 8: 177
- Pennefather J.N., Vardolov L., Heath P. Clin. Exp. Pharmacol. Physiol. 1974; 1: 451–462
- Singha S.C. Medicinal plants of Nigeria 1st ed. Nigeria National Press, Lagos 1965; 44
- Tayo F.M. Clin. Exp. Pharmacol. 1979; 6: 275–279
- Wadsworth R.M. Eur. J. Pharmacol. 1973; 21: 383–387
- Wadsworth R.M. Clin Exp. Pharmacol. Physiol. 1974; 1: 135–145