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Psychiatry Research > 2010 > 176 > 2-3 > 236-241
Optometry - Journal of the American Optometric Association > 2009 > 80 > 5 > 249-254
Journal of Clinical Epidemiology > 1996 > 49 > 11 > 1309-1313
Psychiatry Research > 2010 > 176 > 2-3 > 236-241
Optometry - Journal of the American Optometric Association > 2009 > 80 > 5 > 249-254
Journal of Clinical Epidemiology > 1996 > 49 > 11 > 1309-1313