```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>Living-  18-34@19:47:19</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>3</hlevel>
            <item_name>Living</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Vital Status\Living\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographic \ Vital Status \ Living</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>3</hlevel>
            <item_name>  18-34 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\18-34 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 18-34 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>  35-44 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\35-44 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 35-44 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>  45-54 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\45-54 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 45-54 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>  55-64 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\55-64 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 55-64 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>  65-74 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\65-74 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 65-74 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>75 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\75 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 75 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>76 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\76 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 76 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>77 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\77 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 77 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>78 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\78 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 78 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>79 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\79 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 79 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>80 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\80 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old \ 80 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all patients in the i2b2 database who are between the ages of 18 and 84 years old, including specific ages of 75, 76, 777, 78, 79, and 80 years old.