Dr. Elsayegh graduated from the Ross University School of Medicine in 1998. He works in Los Angeles, CA and 3 other locations and specializes in Critical Care Medicine, Critical Care Respiratory Therapy, Pulmonology and Sleep Medicine.

Denise Kandel, PhD., Head of the Department of Epidemiology of Substance Abuse at the New York State Psychiatric Institute, Professor of Sociomedical Sciences and Psychiatry at Columbia University. Major interests: the epidemiology, risk factors, and consequences of drug use, in particular smoking and prescription opioid use; the epidemiology of substance dependence; developmental pathways of problem behaviors in adolescence; the intergenerational transmission of deviance; animal models of epidemiological paradigms.