Khat (Catha edulis): health aspects of khat chewing.
Hassan NA, Gunaid AA, Murray-Lyon IM.
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Hassan NA, Gunaid AA, Murray-Lyon IM.
Fadhil I.
Zaki M, Shehab M, El-Aleem AA, Abdel-Salam G, Koeller HB, Ilkin Y, Ross ME, Dobyns WB, Gleeson JG.
M?aroufi H, Benbouazza K, Fa?k A, Bahiri R, Lazrak N, Abouqal R, Amine B, Hajjaj-Hassouni N.
Yunis F, Eapen V, Zoubeidi T, Yousef S.
Ayyash-Abdo H, Alamuddin R.