*Department of Health Policy

†Vanderbilt Center for Child Health Policy

‡Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN

§RAND Corporation, Pittsburgh

∥Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA

¶Department of Economics, Baylor University, Waco, TX

#Department of Pediatrics

**Mildred Stahlman Division of Neonatology, Vanderbilt University Medical Center, Nashville, TN

Research reported in this publication was supported by the National Institute on Drug Abuse of the National Institutes of Health under award numbers R01DA045729 (Patrick), K01DA050740 (Leech), and R01DA045800 (Stein). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

The authors declare no conflicts of interest.

Correspondence to: Ashley A. Leech, PhD, MS, Department of Health Policy, Vanderbilt University School of Medicine, 2525 West End Avenue, Suite 1275, Nashville, TN 37206. E-mail: [email protected].

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