الفهرس 
METHODOLOGYOnly 14 pages are availabe for public view
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Abstract
1. We recommend the development of a registration system of the Egyptian research work. The presence of such system will allow recording of all Egyptian studies so obtaining of these studies will be easier.
2. We need more epidemiological survey research. Such surveys are particularly needed for studying the social and cultural context of psychiatric disorders.
3. Regarding thesis, study design and sample size calculation are crucial to be mentioned. The study design should be appropriate for the aim intended to be fulfilled, and the sample size should be sufficient to obtain reliable results.