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    Measuring oxygen saturation in blood with pulse oximeter. — Stock Photo
    Measuring oxygen saturation in blood with pulse oximeter.
    Labelled vacutainer tubes containing blood samples, close-up. — Stock Photo
    Labelled vacutainer tubes containing blood samples, close-up.
    Close up of test tube machine in factory — Stock Photo
    Close up of test tube machine in factory
    Hand holding multi well plate with samples with DNA results in background. — Stock Photo
    Hand holding multi well plate with samples with DNA results in background.
    Middle-aged woman on an open MRI machine waiting for the test to begin — Stock Photo
    Middle-aged woman on an open MRI machine waiting for the test to begin
    Close-up of optometrist examining patient eyes with eye test equipment in clinic — Stock Photo
    Close-up of optometrist examining patient eyes with eye test equipment in clinic
    Sliced carrot in test tube, studio shot. — Stock Photo
    Sliced carrot in test tube, studio shot.
    Female scientists using microscopes in lab — Stock Photo
    Female scientists using microscopes in lab
    Close-up shot of doctor examining belly of pregnant woman with ultrasound — Stock Photo
    Close-up shot of doctor examining belly of pregnant woman with ultrasound
    Female doctor preparing to do a pcr test — Stock Photo
    Female doctor preparing to do a pcr test
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak — Stock Photo
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak