Scottsdale Research Institute is a Phoenix-based clinical trials site that is dedicated to advancing the state of medical care through rigorous research. SRI strives to conduct high quality, controlled scientific studies intended to ascertain the general medical safety and efficacy of cannabis and cannabis products and examine various forms of cannabis administration. SRI is currently conducting the only federally authorized study of medical cannabis for Post-Traumatic Stress Disorder (PTSD) for military veterans in the United States.