Azhari, A., H. Hasanabadi, and A. R. Ardani. “New Cause of Death in Young Adults: Association Between Illicit Drug Abuse and Amyotrophic Lateral Sclerosis”. International Journal of Medical Research and Review, Vol. 3, no. 7, Aug. 2015, pp. 721-5, doi:10.17511/ijmrr.2015.i7.136.