```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns4:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/">
    <query_name>CT Re-20-27@16:52:53</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>2</hlevel>
            <item_name>CT Reports</item_name>
            <item_key>\\i2b2_REP\i2b2\Reports\CT Reports\</item_key>
            <item_icon>LAE</item_icon>
            <tooltip>i2b2 \ Reports \ CT Reports</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>5</hlevel>
            <item_name>20</item_name>
            <item_key>\\BIRN\BIRN\oasis\Clinical Measures\MMSE score\Mild Alzheimers disease\20\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>oasis \ Clinical Measures \ MMSE score \ Mild Alzheimer's disease \ 20</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>3</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>5</hlevel>
            <item_name>27</item_name>
            <item_key>\\BIRN\BIRN\oasis\Clinical Measures\MMSE score\No Alzheimers disease\27\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>oasis \ Clinical Measures \ MMSE score \ No Alzheimer's disease \ 27</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all CT Reports that were created at any time and contain two specific panels: one with a measure of mild Alzheimer's disease with a score of 20 and another with no Alzheimer's disease with a score of 27. The specificity scale is set to 0, meaning that all matching cases will be included, and the accuracy scale is set to 100, indicating that the query is highly accurate. The panel timing is set to ANY, which means that the time frame is not restricted. The class is set to ENC, and no synonyms are used in this query.