ACKNOWLEDGMENTS
Preparation of this commentary was partially supported by a P30 “Center of Excellence” grant from the National Institute on Drug Abuse (NIDA; P30DA029926; Principal Investigator: Lisa A. Marsch, PhD; www.c4tbh.org), a P50 “Center of Excellence” grant from the Agency for Healthcare Research and Quality (AHRQ; P50 HS019917; Principal Investigator: David Gustafson, PhD) as well as NIH grants #R01 AA017192 and R01 DA034279.