   <th colspan="2">Get All Types of Cancer</th>
    </tr>
    <tr>
        <td>Description</td>
        <td>Retrieves a list of all the clinical types of cancer stored on the server.</td>
    </tr>
    <tr>
        <td>Query Format</td>
        <td><strong>cmd=getTypesOfCancer</strong> (required)</td>
    </tr>
    <tr>
        <td>Response Format</td>
        <td><p>A tab-delimited file with two columns:</p>
            <ul>
                <li><strong>type_of_cancer_id:</strong>  a unique text identifier 