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Hormone Therapy and Breast Cancer
David Zava, PhD
ZRT Laboratory President

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Medicare Part B Patients - If you have Medicare coverage, please do not place your order via ZRT’s shopping cart; you may contact ZRT’s Customer Service Department at 1-866-600-1636 to place your order.

Shipping and Return Policies
No PO Boxes - a physical address is required for delivery. Orders typically ship within two business days but date and time of order shipment or delivery is not guaranteed. Requests for Overnight delivery must be received by 11am Pacific Time to ship the same day, does not include weekends or holidays and may not be available to all areas. It is the receiver's responsibility to pay any sales and/or country taxes, international import fees and custom duties. NY residents: Due to special restrictions, no orders will be shipped to the state of NY. CA residents: Due to special restrictions, no pre-paid orders will be shipped to the state of CA without authorization from a health care professional licensed in CA to order lab testing. Estimated delivery times do not include weekends or holidays. Ground 5-7 days, 2-Day 2 days (Puerto Rico must use this option), Next Day 1 day, International (incl. Canada) 5-10 weekdays. Shipping fees are non-refundable. The original test kit, including all contents and the original Test Requisition must be returned to ZRT Laboratory before any refunds can be issued.