1. I. Khan andP. Kalix, Khat,plant with amphetamine like effects, TIPS5, 326–328 (1984).
2. M. Tariq, N.S. Parmar, A.M. Ageel, I.A. Al-Meshal,The gastric anti-ulcer activity of Khat (Catha edulis Forsk): Investigations on its flavonoid fraction. Res. Comm. Subst. Abuse5, 157–160 (1984).
3. A. Villar, M.A. Casco andM.J. Alcaraz,Anti-inflammatory and anti-ulcer properties of hypolaetin-8-glucoside, a novel plant flavonoid. J. Pharm., Pharmac.36, 820–823 (1984).
4. J.M. Harris andP.S.J. Spencer,A modified plethysmographic apparatus for recording volume changes in rat paw. J. Pharm. Pharmacol.14, 464 (1962).
5. S. Goldstein, I. Shemano, R. Demes andJ.M. Beiler,Cotton pellet granuloma pouch method for evaluation of anti-inflammatory activity, Arch. Int. Pharmacodyn. Ther.165, 294–301 (1976).