References
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- Al-Motarreb M, Al-Habori, Broadley KJ. Khat Chewing, cardiovascular diseases and other internal medical problems. The current situation and directions for future research. Journal of Ethnopharmacology 2010; 132: 540–548
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- INCB. 2005. Annual Report. Retrieved from http://www.incb.org/pdf/e/ar/2005/incb_report_2005_4.pdf.
- INCB. 2008. Annual Report. Retrieved from http://www.incb.org/pdf/annual-report/2008/en/AR_08_English.pdf.
- INCB. 2009. Annual Report. Retrieved from http://www.incb.org/incb/en/annual-report-2009.html.
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- World Health Organisation (2006). ECDD 2006/4.4 Assessment of khat (Catha edulis Forsk). Geneva: World Health Organisation. Retrieved from http://www.who.int/medicines/areas/quality safety/d.dKhatCrit.Review.pdf.