ohif-viewer/docs/latest/extensions/_maintained-extensions-table.md

<table>
    <thead>
        <tr>
            <th>Extension</th>
            <th>Description</th>
            <th>Modules</th>
        </tr>
    </thead>
    <tbody>
        <!-- CORNERSTONE.js -->
        <tr>
            <td>
                <a href="">
                    Default
                </a>
            </td>
            <td>
                Default extension provides default viewer layout, a study/series
                browser, and a datasource that maps to a DICOMWeb compliant backend
            </td>
            <td>commandsModule, ContextModule, DataSourceModule, HangingProtocolModule, LayoutTemplateModule, PanelModule, SOPClassHandlerModule, ToolbarModule</td>
        </tr>
        <!-- CORNERSTONE.js -->
        <tr>
            <td>
                <a href="https://www.npmjs.com/package/@ohif/extension-cornerstone">
                    Cornerstone
                </a>
            </td>
            <td>
                Provides rendering functionalities for 2D images.
            </td>
            <td>ViewportModule, CommandsModule</td>
        </tr>
        <!-- dicom-pdf -->
        <!-- <tr>
            <td>
                <a href="https://www.npmjs.com/package/@ohif/extension-dicom-pdf">DICOM PDF</a>
            </td>
            <td>
                Renders PDFs for a <a href="https://github.com/OHIF/Viewers/blob/master/extensions/dicom-pdf/src/OHIFDicomPDFSopClassHandler.js#L4-L6">specific SopClassUID</a>.
            </td>
            <td>Viewport, SopClassHandler</td>
        </tr> -->
        <!-- dicom-sr -->
        <tr>
            <td>
                <a href="">DICOM SR</a>
            </td>
            <td>
                Maintained extensions for cornerstone and visualization of DICOM Structured Reports
            </td>
           <td>ViewportModule, CommandsModule, SOPClassHandlerModule</td>
        </tr>
        <!-- Measurement-tracking -->
        <tr>
            <td>
                <a href="">Measurement tracking</a>
            </td>
            <td>
                Tracking measurements in the measurement panel
            </td>
            <td> ContextModule,PanelModule,ViewportModule,CommandsModule</td>
        </tr>

    </tbody>
</table>