If there's a test for it, chances are a storefront lab is eager to help you have it done. iStockphoto.com hide caption

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Retail Labs Give Patients Information, But Needle Doctors

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Wouldn't you love to know what she's jotting down? Of course you would. iStockphoto.com hide caption

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Do you really need that MRI, or is your doctor just trying to make a buck? iStockphoto.com hide caption

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U.S. Navy doctors Lt. Cmdr Ralph Pickard (left) and Ens. Jesse Rohloff study a patient's mammogram images at the National Naval Medical Center in Bethesda, Md. CWO4 Seth Rossman/U.S. Navy hide caption

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