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  <xs:element id="hsic_TemporaryEmployeeCompletes12ConsecutiveMonthsOfServiceAnd1000HoursOfServiceMember" abstract="true" nillable="true" name="TemporaryEmployeeCompletes12ConsecutiveMonthsOfServiceAnd1000HoursOfServiceMember" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"></xs:element>
  <xs:element id="hsic_TemporaryEmployeeCompletesThreeConsecutiveYearsOfServiceAnd500HoursOfServiceMember" abstract="true" nillable="true" name="TemporaryEmployeeCompletesThreeConsecutiveYearsOfServiceAnd500HoursOfServiceMember" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"></xs:element>
  <xs:element id="hsic_EmployeeBenefitPlanTemporaryEmployeesRequiredServiceHoursEligibleToParticipateInDeferralContributions" nillable="true" name="EmployeeBenefitPlanTemporaryEmployeesRequiredServiceHoursEligibleToParticipateInDeferralContributions" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"></xs:element>
  <xs:element id="hsic_EmployeeBenefitPlanEmployerDiscretionaryContributionAmount" nillable="true" name="EmployeeBenefitPlanEmployerDiscretionaryContributionAmount" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" xbrli:balance="debit"></xs:element>
  <xs:element id="hsic_EmployeeBenefitPlanParticipantElectionPercentageOfBalancesToEmployerCommonStockFund" nillable="true" name="EmployeeBenefitPlanParticipantElectionPercentageOfBalancesToEmployerCommonStockFund" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"></xs:element>
</xs:schema>
