from training.npr.org: https://training.npr.org/sources/richard-yi/
substance abuse

Crystal Burwell is a mental health counselor who specializes in treating young people suffering from depression, PTSD, anxiety disorders, and eating disorders.

Miesha Marzell is an assistant professor of public health at Binghamton University, part of the State University of New York system.

Regina Shih is the director of the Social and Behavioral Policy Program and a senior policy researcher at the RAND Corporation.

Magdalena Cerdá is an associate professor and director of the Center for Opioid Epidemiology and Policy at the NYU Grossman School of Medicine’s department of population health.

Carl Hart is the Ziff Professor of Psychology at Columbia University and an expert on substance abuse and addiction.

Roberta Diaz Brinton is the director of the UA Center for Innovation in Brain Science at the University of Arizona Health Sciences and a Regents professor of pharmacology and neurology