1. Relieving Pain in America. A Blueprint for Transforming Prevention, Care, Education, and Research. Institute of Medicine (US) Committee on Advancing Pain Research, Care, and Education. Washington (DC): National Academies Press (US); 2011. ISBN-13: 978-0-309-21484-1.
2. Gaskin DJ, Richard P (2012) The Economic Costs of Pain in the United States. The Journal of Pain 13(8): 715-724.
3. Han B, Compton WM, Blanco C, Crane E, Lee J, et al. (2017) Prescription Opioid Use, Misuse, and Use Disorders in U.S. Adults: 2015 National Survey on Drug Use and Health. Ann Intern Med 167(5): 293-301.
4. Muhuri PK, Gfroerer JC, Davies MC (2013) (CBHSQ [Center for Behavioral Health Statistics and Quality] Data Review, 2013).
5. Predictors of transition to heroin use among initially non-opioid dependent illicit pharmaceutical opioid users: A natural history study;Carlson;Drug Alcohol Depend,2016