```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>Operations on r@14:48:57</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>Operations on respiratory system</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(30-34) Operations on respiratory system\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Procedures \ ICD9 (Inpatient) \ Operations on respiratory system</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>Operations on nose, mouth and pharynx</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(21-29) Operations on nose, mouth and pharynx\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Procedures \ ICD9 (Inpatient) \ Operations on nose, mouth and pharynx</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all patients who have undergone any procedures related to the respiratory system, including operations on the nose, mouth, and pharynx, as recorded in the ICD9 (Inpatient) coding system, within the specified timeframe.