Published on in Vol 20, No 4 (2018): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10029, first published
.
![Solution to Detect, Classify, and Report Illicit Online Marketing and Sales of Controlled Substances via Twitter: Using Machine Learning and Web Forensics to Combat Digital Opioid Access Solution to Detect, Classify, and Report Illicit Online Marketing and Sales of Controlled Substances via Twitter: Using Machine Learning and Web Forensics to Combat Digital Opioid Access](https://asset.jmir.pub/assets/8664c4df2a074f176074c65dc9d7d4de.png 480w,https://asset.jmir.pub/assets/8664c4df2a074f176074c65dc9d7d4de.png 960w,https://asset.jmir.pub/assets/8664c4df2a074f176074c65dc9d7d4de.png 1920w,https://asset.jmir.pub/assets/8664c4df2a074f176074c65dc9d7d4de.png 2500w)
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