```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>Cefazolin-Cefazolin-Cefazolin@15:32:15</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>1</hlevel>
            <item_name>Cefazolin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ anti-infectives \ cephalosporins \ first generation cephalosporins \ cefazolin</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Dose</modifier_name>
                <modifier_key>\\i2b2_MEDS\Medication\Dose\</modifier_key>
                <applied_path>\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\%</applied_path>
                <constrain_by_value>
                    <value_operator>LE</value_operator>
                    <value_constraint>1000</value_constraint>
                    <value_unit_of_measure>mg</value_unit_of_measure>
                    <value_type>NUMBER</value_type>
                </constrain_by_value>
            </constrain_by_modifier>
            <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>1</hlevel>
            <item_name>Cefazolin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ anti-infectives \ cephalosporins \ first generation cephalosporins \ cefazolin</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Frequency</modifier_name>
                <modifier_key>\\i2b2_MEDS\Medication\Frequency\</modifier_key>
                <applied_path>\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\%</applied_path>
                <constrain_by_value>
                    <value_operator>IN</value_operator>
                    <value_constraint>('QD')</value_constraint>
                    <value_type>TEXT</value_type>
                </constrain_by_value>
            </constrain_by_modifier>
            <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>1</hlevel>
            <item_name>Cefazolin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ anti-infectives \ cephalosporins \ first generation cephalosporins \ cefazolin</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Route</modifier_name>
                <modifier_key>\\i2b2_MEDS\Medication\Route\</modifier_key>
                <applied_path>\i2b2\Medications\%</applied_path>
                <constrain_by_value>
                    <value_operator>IN</value_operator>
                    <value_constraint>('injection')</value_constraint>
                    <value_type>TEXT</value_type>
                </constrain_by_value>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find instances of Cefazolin medication in the i2b2 database where the dose is less than or equal to 1000 mg, administered once daily (QD frequency), and the route of administration is through injection.