تصفح حسب المؤلف "Gray, Richard"
-
Depression in migrant workers and nationals of Qatar: An exploratory cross-cultural study
Khaled, Salma M; Gray, Richard ( SAGE Publications , 2019 , Article)Background: The aim of this study was to compare the prevalence of depressive symptoms among migrants and non-migrants living in Qatar and identify variables associated with depressive symptomology in these groups, including ... -
The prevalence of novel psychoactive substances (NPS) use in non-clinical populations: a systematic review protocol
Khaled, Salma M.; Hughes, Elizabeth; Bressington, Dan; Zolezzi, Monica; Radwan, Ahmed; Badnapurkar, Ashish; Gray, Richard... more authors ... less authors ( BioMed Central , 2016 , Article)Background Novel psychoactive substances (NPS) are new narcotic or psychotropic drugs that are not controlled by the United Nations drug convention that may pose a serious public health threat due to their wide availability ...