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    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    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.
    Back view of unrecognizable African male medics in protective uniforms taking PCR test sample from anonymous travelers in red cabins in countryside — Stock Photo
    Back view of unrecognizable African male medics in protective uniforms taking PCR test sample from anonymous travelers in red cabins in countryside
    Graduated pipette and test tubes — Stock Photo
    Graduated pipette and test tubes
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Black woman in optometry cabinet during study of the eyesight — Stock Photo
    Black woman in optometry cabinet during study of the eyesight
    Cropped unrecognizable female doctor in blue glove using ultrasound scanner while examining cheerful pregnant woman and looking at computer screen in hospital — Stock Photo
    Cropped unrecognizable female doctor in blue glove using ultrasound scanner while examining cheerful pregnant woman and looking at computer screen in hospital
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Crop anonymous scientist in protective gloves shaking blue chemical substance in flask while working in modern equipped laboratory — Stock Photo
    Crop anonymous scientist in protective gloves shaking blue chemical substance in flask while working in modern equipped laboratory
    Close-up of optometrist examining patient eyes with phoropter in clinic — Stock Photo
    Close-up of optometrist examining patient eyes with phoropter in clinic
    Pregnancy test showing positive result on white background. — Stock Photo
    Pregnancy test showing positive result on white background.
    Agronomy specialist taking soil sample for fertility analysis. — Stock Photo
    Agronomy specialist taking soil sample for fertility analysis.
    Side view of anonymous doctor in protective suit standing in ambulance car near opened door with equipment and examining patient with virus infection — Stock Photo
    Side view of anonymous doctor in protective suit standing in ambulance car near opened door with equipment and examining patient with virus infection
    Female doctor performing skin prick allergy testing on boy for possible allergen. — Stock Photo
    Female doctor performing skin prick allergy testing on boy for possible allergen.
    Senior woman preparing DNA test kit. — Stock Photo
    Senior woman preparing DNA test kit.
    Crop anonymous veterinarian in sterile gloves operating animal near EKG test monitor in hospital — Stock Photo
    Crop anonymous veterinarian in sterile gloves operating animal near EKG test monitor in hospital
    Close-up of senior woman adjusting eyeglasses in clinic — Stock Photo
    Close-up of senior woman adjusting eyeglasses in clinic
    Chemist hand picking samples stored in crimp neck vials in pharmaceutical laboratory. — Stock Photo
    Chemist hand picking samples stored in crimp neck vials in pharmaceutical laboratory.
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge. — Stock Photo
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge.
    Woman undergoing ophthalmology visual field testing with A-scan ultrasound biometry. — Stock Photo
    Woman undergoing ophthalmology visual field testing with A-scan ultrasound biometry.
    Teacher and students using pipette and beakers at interactive exhibit in science center — Stock Photo
    Teacher and students using pipette and beakers at interactive exhibit in science center
    Male doctor checking up chest of woman on monitor of ultrasound machine in hospital — Stock Photo
    Male doctor checking up chest of woman on monitor of ultrasound machine in hospital
    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Collage of masks for protection factor KN95 on a blue background zenith view — Stock Photo
    Collage of masks for protection factor KN95 on a blue background zenith view
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Chemist using nuclear magnetic resonance spectrometer in pharmaceutical laboratory. — Stock Photo
    Chemist using nuclear magnetic resonance spectrometer in pharmaceutical laboratory.
    Mid adult woman doing pin prick test on finger. — Stock Photo
    Mid adult woman doing pin prick test on finger.
    Close-up of scientist holding blood testing microtubes. — Stock Photo
    Close-up of scientist holding blood testing microtubes.
    Scientist hands holding urine sample in container and chart, studio shot. — Stock Photo
    Scientist hands holding urine sample in container and chart, studio shot.
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start — Stock Photo
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start
    Monitoring respiratory illness with digital spirometer. — Stock Photo
    Monitoring respiratory illness with digital spirometer.
    Senior man checking his blood sugar with glucometer at home — Stock Photo
    Senior man checking his blood sugar with glucometer at home
    Scientist holding samples in multi well plate during experiment in laboratory. — Stock Photo
    Scientist holding samples in multi well plate during experiment in laboratory.
    Scientist holding DNA sample in tube with autoradiograph on DNA gel. — Stock Photo
    Scientist holding DNA sample in tube with autoradiograph on DNA gel.
    Seedlings growing in laboratory test tubes, conceptual image of plant research and genetic engineering. — Stock Photo
    Seedlings growing in laboratory test tubes, conceptual image of plant research and genetic engineering.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Tube with blood sample on metal tray in laboratory, close-up. — Stock Photo
    Tube with blood sample on metal tray in laboratory, close-up.
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Labelled vacutainer tubes containing blood samples, close-up. — Stock Photo
    Labelled vacutainer tubes containing blood samples, close-up.
    Senior woman using spirometer, measuring lung capacity and peak expiratory force. — Stock Photo
    Senior woman using spirometer, measuring lung capacity and peak expiratory force.
    Team of scientists experimenting together in laboratory — Stock Photo
    Team of scientists experimenting together in laboratory
    Attractive concentrated teenage female student taking notes for exam and drinking hot beverage while sitting on bed — Stock Photo
    Attractive concentrated teenage female student taking notes for exam and drinking hot beverage while sitting on bed
    Close-up shot of surgeon with binoculars at work — Stock Photo
    Close-up shot of surgeon with binoculars at work
    Crop anonymous biologist in glove putting dried marihuana flower buds on pan of moisture measuring device in laboratory — Stock Photo
    Crop anonymous biologist in glove putting dried marihuana flower buds on pan of moisture measuring device in laboratory
    Sterile tubes and medical samples on glass table — Stock Photo
    Sterile tubes and medical samples on glass table
    College students taking test at desk in classroom — Stock Photo
    College students taking test at desk in classroom
    Crop anonymous competent researcher in white robe latex gloves and face mask working in modern laboratory and standing near table with assorted glassware including graduated cylinders syringes and test tubes — Stock Photo
    Crop anonymous competent researcher in white robe latex gloves and face mask working in modern laboratory and standing near table with assorted glassware including graduated cylinders syringes and test tubes
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Close-up of human blood and various hiv samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various hiv samples in test tubes while screening in medical lab.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Happy senior male with phoropter during eye examination looking at camera and thumb up — Stock Photo
    Happy senior male with phoropter during eye examination looking at camera and thumb up
    Woman using microscope near colleagues in laboratory — Stock Photo
    Woman using microscope near colleagues in laboratory
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Close-up of pipetting sample into row of test tubes during experiment in laboratory. — Stock Photo
    Close-up of pipetting sample into row of test tubes during experiment in laboratory.
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Petri dish with bacteria — Stock Photo
    Petri dish with bacteria