```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>(t) Laparos-Body maLaparosLaborat@13:37:22</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>SAMEVISIT</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>6</hlevel>
            <item_name>Laparoscopic cholecystectomy</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(42-54) Operations on digestive system\(p51) Operations on gallbladder a~\(p51-2) Cholecystectomy4\(p51-23) Laparoscopic cholecystec~\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Procedures \ ... \ Operations on digestive system \ Operations on gallbladder and biliary tract \ Cholecystectomy \ Laparoscopic cholecystectomy</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</panel_number>
        <panel_timing>SAMEVISIT</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>Body mass index (bmi) 20-29, adult</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(Z00-Z99) Fact~rmj9\(Z68-Z68) Body~zq26\(Z68) Body mas~9tue\(Z68.2) Body m~p32m\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Factors influencing health status and contact with health services (z00-z99) \ Body mass index (bmi) (z68) \ Body mass index (bmi)
 \ Body mass index (bmi) 20-29, adult</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <subquery_constraint>
        <first_query>
            <query_id>Observation A</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>FIRST</aggregate_operator>
        </first_query>
        <operator>LESS</operator>
        <second_query>
            <query_id>Observation B</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>FIRST</aggregate_operator>
        </second_query>
        <span>
            <operator>GREATEREQUAL</operator>
            <span_value>60</span_value>
            <units>DAY</units>
        </span>
    </subquery_constraint>
    <subquery>
        <query_id>Observation A</query_id>
        <query_type>EVENT</query_type>
        <query_name>Observation A</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>0</panel_number>
            <panel_timing>SAMEINSTANCENUM</panel_timing>
            <panel_accuracy_scale>100</panel_accuracy_scale>
            <invert>0</invert>
            <total_item_occurrences>1</total_item_occurrences>
            <item>
                <hlevel>6</hlevel>
                <item_name>Laparoscopic cholecystectomy</item_name>
                <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(42-54) Operations on digestive system\(p51) Operations on gallbladder a~\(p51-2) Cholecystectomy4\(p51-23) Laparoscopic cholecystec~\</item_key>
                <item_icon>LA</item_icon>
                <tooltip>Procedures \ ... \ Operations on digestive system \ Operations on gallbladder and biliary tract \ Cholecystectomy \ Laparoscopic cholecystectomy</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
    <subquery>
        <query_id>Observation B</query_id>
        <query_type>EVENT</query_type>
        <query_name>Observation B</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>0</panel_number>
            <panel_timing>SAMEINSTANCENUM</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>Laboratory Tests</item_name>
                <item_key>\\i2b2_LABS\i2b2\Labtests\</item_key>
                <item_icon>FA</item_icon>
                <tooltip>Labtests</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
</ns4:query_definition>

```

I want to find all patients who have had a laparoscopic cholecystectomy procedure (Laparoscopic cholecystectomy) and have a body mass index (BMI) between 20 and 29 for adults (Body mass index (bmi) 20-29, adult) during the same visit. The laparoscopic cholecystectomy must have occurred within 60 days before or after the BMI measurement.