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    Focused high school girl student taking exam at desk in classroom — Stock Photo
    Focused high school girl student taking exam at desk in classroom
    Scientist pipetting samples into test tubes in laboratory. — Stock Photo
    Scientist pipetting samples into test tubes in laboratory.
    Measuring oxygen saturation in blood with pulse oximeter. — Stock Photo
    Measuring oxygen saturation in blood with pulse oximeter.
    Portrait of smiling doctor standing in x-ray room at hospital — Stock Photo
    Portrait of smiling doctor standing in x-ray room at hospital
    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
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    Assistant working in lab with pink liquid — Stock Photo
    Assistant working in lab with pink liquid
    Portrait of smiling university student standing in corridor, people in background looking at exam results — Stock Photo
    Portrait of smiling university student standing in corridor, people in background looking at exam results
    Seedlings growing in test tubes, conceptual image of plant research and genetic engineering. — Stock Photo
    Seedlings growing in test tubes, conceptual image of plant research and genetic engineering.
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood — Stock Photo
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood
    Green plants in test tubes, botanical research concept. — Stock Photo
    Green plants in test tubes, botanical research concept.
    Chinese doctor showing x-ray test result to senior couple — Stock Photo
    Chinese doctor showing x-ray test result to senior couple
    Low-angle view of university students standing in corridor and looking at test results — Stock Photo
    Low-angle view of university students standing in corridor and looking at test results
    Car salesman talking to couple — Stock Photo
    Car salesman talking to couple
    African American male doctor in medical glove demonstrating test tube with blood sample on white background — Stock Photo
    African American male doctor in medical glove demonstrating test tube with blood sample on white background
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption. — Stock Photo
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption.
    Doctor looking at ultrasound scan machine in hospital — Stock Photo
    Doctor looking at ultrasound scan machine in hospital
    Close-up of optometrist examining patient eyes with phoropter in clinic — Stock Photo
    Close-up of optometrist examining patient eyes with phoropter in clinic
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    Water department technician installing a snow stake — Stock Photo
    Water department technician installing a snow stake
    Portrait of smiling doctor standing in x-ray room at hospital — Stock Photo
    Portrait of smiling doctor standing in x-ray room at hospital
    Computer programmers testing virtual reality simulator glasses in open plan office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in open plan office
    Boy wearing headphones as playing with building blocks while hearing test, female doctor in background. — Stock Photo
    Boy wearing headphones as playing with building blocks while hearing test, female doctor in background.
    Woman doing finger prick test — Stock Photo
    Woman doing finger prick test
    Senior man checking his blood sugar with glucometer at home — Stock Photo
    Senior man checking his blood sugar with glucometer at home
    Woman dipping her hand in a river, Bulgaria — Stock Photo
    Woman dipping her hand in a river, Bulgaria
    Female doctor analyzing a CRP test of a senior patient — Stock Photo
    Female doctor analyzing a CRP test of a senior patient
    Laboratory technician scanning bar code of test tube rack in blood bank — Stock Photo
    Laboratory technician scanning bar code of test tube rack in blood bank
    Close up of a hand holding a stopwatch — Stock Photo
    Close up of a hand holding a stopwatch
    Crop unrecognizable medic with needle and syringe collecting blood from vein of patient in hospital — Stock Photo
    Crop unrecognizable medic with needle and syringe collecting blood from vein of patient in hospital
    Mother helping son test blood sugar — Stock Photo
    Mother helping son test blood sugar
    Empty test tubes in red rack. — Stock Photo
    Empty test tubes in red rack.
    Close-up of lab-on-a-chip integrated circuit device on black background. — Stock Photo
    Close-up of lab-on-a-chip integrated circuit device on black background.
    Stacked agar plates on plain background. — Stock Photo
    Stacked agar plates on plain background.
    Close-up of doctor holding cardio monitor — Stock Photo
    Close-up of doctor holding cardio monitor
    Biologist with protective gloves performing a coronavirus test on a person in a car — Stock Photo
    Biologist with protective gloves performing a coronavirus test on a person in a car
    Dried marijuana flower buds on table with analytical balance and moisture measuring device against protective glasses in lab — Stock Photo
    Dried marijuana flower buds on table with analytical balance and moisture measuring device against protective glasses in lab
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Woman performing a nasal PCR test on a patient — Stock Photo
    Woman performing a nasal PCR test on a patient
    Female scientist holding blood sample by microscope in laboratory. — Stock Photo
    Female scientist holding blood sample by microscope in laboratory.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Mid section of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Mid section of scientist in laboratory mixing samples of soil with reagent.
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Senior woman doing wrist joint physical therapy with conductive TENS (transcutaneous electrical nerve stimulation) electrode cuff. — Stock Photo
    Senior woman doing wrist joint physical therapy with conductive TENS (transcutaneous electrical nerve stimulation) electrode cuff.
    Pills and capsules in test tube on grey background. — Stock Photo
    Pills and capsules in test tube on grey background.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Blood samples in test tubes on white background. — Stock Photo
    Blood samples in test tubes on white background.
    School in Grashoek village — Stock Photo
    School in Grashoek village
    Ophthalmologist performing visual field testing at female patient. — Stock Photo
    Ophthalmologist performing visual field testing at female patient.
    Unrecognizable female medic in mask and gloves holding tube with blood sample in modern lab in clinic — Stock Photo
    Unrecognizable female medic in mask and gloves holding tube with blood sample in modern lab in clinic
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    Car dealer helping woman with test drive — Stock Photo
    Car dealer helping woman with test drive
    Side view of cropped unrecognizable male medic using modern ultrasound equipment and examining heart of male patient in mask lying on medical table during diagnostic in hospital — Stock Photo
    Side view of cropped unrecognizable male medic using modern ultrasound equipment and examining heart of male patient in mask lying on medical table during diagnostic in hospital
    Petri dishes and pipette, close-up. — Stock Photo
    Petri dishes and pipette, close-up.
    Young female scientist working in laboratory — Stock Photo
    Young female scientist working in laboratory
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom
    Ophthalmologist examining a womans eyes with a phoropter — Stock Photo
    Ophthalmologist examining a womans eyes with a phoropter
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Side view of woman in medical uniform and mask using modern microscope to examine human cells while working in lab of modern clinic — Stock Photo
    Side view of woman in medical uniform and mask using modern microscope to examine human cells while working in lab of modern clinic