2>
      <p><small class="dont-index">Source: <a href="https://github.com/bcallaway11/ptetools/blob/HEAD/inst/CITATION"><code>inst/CITATION</code></a></small></p>

      <p>Callaway B (2025).
<em>Panel Treatment Effects Tools</em>.
R package version 1.0.0, <a href="https://github.com/bcallaway11/ptetools">https://github.com/bcallaway11/ptetools</a>.
</p>
      <pre>@Manual{,
  title = {Panel Treatment Effects Tools},
  author = {Brantly Callaway},
  year = {2025},
  note = {R package version 1.0.0},
  url =