> For the complete documentation index, see [llms.txt](https://qu-tang.gitbook.io/documentation-real-world-puffing-and-smoking-data/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://qu-tang.gitbook.io/documentation-real-world-puffing-and-smoking-data/5_contact_us.md).

# Contact us

If you have any question about the dataset or source codes, please contact [Qu Tang](mailto:tang.q@husky.neu.edu) or [Dr. Stephen Intille](mailto:s.intille@neu.edu).