1. The cost and burden of chronic pain;Phillips;Rev pain,2009
2. Biased mu-opioid receptor ligands: a promising new generation of pain therapeutics;Siuda;Curr. Opin. Pharmacol.,2017
3. Introduction to the opioid epidemic: the economic burden on the healthcare system and impact on quality of life;Hagemeier;Am. J. Manag. Care,2018
4. Statistics on Pharmaceuticals Dispensed to Public Pharmacies (Farmanet);National Institute for Health and Disability Insurance,2017
5. Introduction: nonresponse bias in household surveys;Singer;Publ. Opin. Q.,2006