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    Optometrist adjusting the optometry equipment during study of the eyesight of a happy black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a happy black woman
    Woman doing finger prick test — Stock Photo
    Woman doing finger prick test
    Doctor taking blood sample — Stock Photo
    Doctor taking blood sample
    Laboratory technician holding test tubes in blood bank — Stock Photo
    Laboratory technician holding test tubes in blood bank
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic. — Stock Photo
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic.
    Lab chemist capturing a digital image of a sample slide on a microscope — Stock Photo
    Lab chemist capturing a digital image of a sample slide on a microscope
    Collage of many KN95 factor protection masks on a red background overhead view in diagonal distribution — Stock Photo
    Collage of many KN95 factor protection masks on a red background overhead view in diagonal distribution
    Monitoring respiratory illness with digital spirometer. — Stock Photo
    Monitoring respiratory illness with digital spirometer.
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Doctor adjusting electroencephalography equipment on mature patient. — Stock Photo
    Doctor adjusting electroencephalography equipment on mature patient.
    Close-up of red glass microtiter plate. — Stock Photo
    Close-up of red glass microtiter plate.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research. — Stock Photo
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research.
    Cropped shot of doctor working with electric dropper — Stock Photo
    Cropped shot of doctor working with electric dropper
    Petri dishes and pipette, close-up. — Stock Photo
    Petri dishes and pipette, close-up.
    Preteen boy undergoing lung function test with female nurse. — Stock Photo
    Preteen boy undergoing lung function test with female nurse.
    Urine sample with test strip on white background. — Stock Photo
    Urine sample with test strip on white background.
    Plant seedling in soil in Petri dish in laboratory. — Stock Photo
    Plant seedling in soil in Petri dish in laboratory.
    Physician measuring arm circumference with tape measure on male athlete. — Stock Photo
    Physician measuring arm circumference with tape measure on male athlete.
    Doctor with oximeter examining little patient — Stock Photo
    Doctor with oximeter examining little patient