Leveraging health information exchange for clinical research: extreme underreporting of hospital service utilization among patients with substance use disorders.

Gryczynski J, Nordeck CD, Martin RD, Welsh C, Schwartz RP, Mitchell SG, Jaffe JH (2020). Leveraging health information exchange for clinical research: extreme underreporting of hospital service utilization among patients with substance use disorders. Drug & Alcohol Dependence,. 212, 107992.