```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>  18--Hyper-Atorv@16:05:04</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>  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>3</hlevel>
            <item_name>  75-84 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\75-84 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 75-84 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>&gt;= 85 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\&gt;= 85 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ &gt;= 85 years old</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>4</hlevel>
            <item_name>Hyperlipidemia</item_name>
            <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Metabolic and immunity disorders (270-279)\(272) Disorders of lipoid metabol~\(272-4) Other and unspecified hyp~\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Diagnoses \ Metabolic and immunity disorders \ Disorders of lipoid metabolism \ Other and unspecified hyperlipidemia</tooltip>
            <class>ENC</class>
            <item_is_synonym>true</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>4</hlevel>
            <item_name>Atorvastatin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME5) antihyperlipidemic agents\(LME8) HMG-CoA reductase inhibitors\atorvastatin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ antihyperlipidemic agents \ hmg-coa reductase inhibitors \ atorvastatin</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Fluvastatin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME5) antihyperlipidemic agents\(LME8) HMG-CoA reductase inhibitors\fluvastatin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ antihyperlipidemic agents \ hmg-coa reductase inhibitors \ fluvastatin</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Simvastatin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME5) antihyperlipidemic agents\(LME8) HMG-CoA reductase inhibitors\simvastatin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ antihyperlipidemic agents \ hmg-coa reductase inhibitors \ simvastatin</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find patients between the ages of 18 and 84 years old, who have been diagnosed with hyperlipidemia, and have been prescribed medications such as atorvastatin, fluvastatin, or simvastatin for the treatment of their condition.