The canary in the coal mine tweets: Social media reveals public perceptions of non-medical use of opioids
- Author(s): Sarkar, Urmimala;
- Chan, B;
- Lopez, A
- et al.
Published Web Locationhttp://europepmc.org/articles/PMC4529203?pdf=render
© 2015 Chan et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Obj