Motives for khat use and abstinence in Yemen--a gender perspective
Wedegaertner, Felix, al-Warith, Hussein, Hillemacher, Thomas, te Wildt, Bert, Schneider, Udo, Bleich, Stefan, Breitmeier, Dirk
Published in BMC public health (27.11.2010)
Published in BMC public health (27.11.2010)
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