Joseph W Iskandar

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Marijuana is the most commonly used illegal substance by adolescents in the United States. According to a 2009 survey conducted by Monitoring the Future, there were about 11.8% of 8th graders, 26.7% of 10th graders and 32.8% of 12th graders who had abused marijuana at least once in the year (Johnston L.D., Bachman J.G., O'Malley P.M., Schulenberg J.E.(More)
The lifetime prevalence of panic attacks is 28.3% in American adults 18 years and older. The age of onset of panic attack extends throughout adulthood; however, it typically develops in early adulthood, with median age of onset of 22 years [Kessler R.C., Chiu W.T., Jin R., Ruscio A.M., Shear K., Walters E.E. The epidemiology of panic attacks, panic(More)