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    Scientist viewing sample on glass slide before light microscope. — Stock Photo
    Scientist viewing sample on glass slide before light microscope.
    Close-up of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Close-up of immunologist performing skin prick allergy testing on boy.
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office.
    Egg on digital egg monitor for testing in egg factory — Stock Photo
    Egg on digital egg monitor for testing in egg factory
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office.
    Cropped view of lab technician carrying cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cropped view of lab technician carrying cell-based testing kit in bioengineering laboratory.
    Female immunologist performing skin prick allergy testing on preschooler boy. — Stock Photo
    Female immunologist performing skin prick allergy testing on preschooler boy.
    Motor testing multimeter and tools on floor at garage — Stock Photo
    Motor testing multimeter and tools on floor at garage
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Caucasian man working at a microbrewery, wearing a high visibility vest, inspecting a glass of beer, checking its color. — Stock Photo
    Caucasian man working at a microbrewery, wearing a high visibility vest, inspecting a glass of beer, checking its color.
    Rear view of man standing on beach and testing drone in air — Stock Photo
    Rear view of man standing on beach and testing drone in air
    Optician using slit lamp for eye examination preteen girl. — Stock Photo
    Optician using slit lamp for eye examination preteen girl.
    Microbiologist working with petri dishes and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dishes and test tubes in laboratory.
    Woman taking her own blood sugar — Stock Photo
    Woman taking her own blood sugar
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Boy coloring shapes with colorful pens for developmental psychology test in female doctor office. — Stock Photo
    Boy coloring shapes with colorful pens for developmental psychology test in female doctor office.
    Motor testing multimeter and mobile phone at floor in garage — Stock Photo
    Motor testing multimeter and mobile phone at floor in garage
    Close-up of petri dishes and hand with pipette for genetic research. — Stock Photo
    Close-up of petri dishes and hand with pipette for genetic research.
    Carpenter fixing door lock at home — Stock Photo
    Carpenter fixing door lock at home
    Police evidence including finger print, DNA swab and results. — Stock Photo
    Police evidence including finger print, DNA swab and results.
    Workers in protective suits using machinery in fiber optics research and testing laboratory — Stock Photo
    Workers in protective suits using machinery in fiber optics research and testing laboratory
    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.
    Cropped image of female staff examining eggs in egg factory — Stock Photo
    Cropped image of female staff examining eggs in egg factory
    Female Asian scientist examining plants in laboratory. — Stock Photo
    Female Asian scientist examining plants in laboratory.
    Close-up of hand of mature woman testing blood pressure with machine. — Stock Photo
    Close-up of hand of mature woman testing blood pressure with machine.
    Lab technician picking up samples — Stock Photo
    Lab technician picking up samples
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic. — Stock Photo
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic.
    Female patient beside digital mammography unit — Stock Photo
    Female patient beside digital mammography unit
    Spirometry. Using digital spirometer with smart phone app, testing lungs. — Stock Photo
    Spirometry. Using digital spirometer with smart phone app, testing lungs.
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    Hands of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Hands of scientist in laboratory mixing samples of soil with reagent.
    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.
    Water department technician holding leak sensor — Stock Photo
    Water department technician holding leak sensor
    Scientist hand sampling water in test tube for quality testing. — Stock Photo
    Scientist hand sampling water in test tube for quality testing.
    Multipipette and rack of vials for genetic research on white background. — Stock Photo
    Multipipette and rack of vials for genetic research on white background.
    High angle view of a Caucasian man wearing a high visibility vest, working in a microbrewery, holding malt in hand over a bag. — Stock Photo
    High angle view of a Caucasian man wearing a high visibility vest, working in a microbrewery, holding malt in hand over a bag.
    Vial of potential drug in petri dish on DNA autoradiogram. — Stock Photo
    Vial of potential drug in petri dish on DNA autoradiogram.
    Lab chemist placing paper filter for sample testing — Stock Photo
    Lab chemist placing paper filter for sample testing
    Female laboratory worker filling vials with pipette, close-up. — Stock Photo
    Female laboratory worker filling vials with pipette, close-up.
    Variety of potential drugs in pharmaceutical vials. — Stock Photo
    Variety of potential drugs in pharmaceutical vials.
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Man and older lady walking dog on sidewalk of suburban neighborhood. — Stock Photo
    Man and older lady walking dog on sidewalk of suburban neighborhood.
    Scientist analyzing a sample in a test tube at lab — Stock Photo
    Scientist analyzing a sample in a test tube at lab
    Cropped image of female staff using digital tablet while examining egg on digital egg monitor — Stock Photo
    Cropped image of female staff using digital tablet while examining egg on digital egg monitor
    Female immunologist performing skin prick allergy testing on boy for possible allergen. — Stock Photo
    Female immunologist performing skin prick allergy testing on boy for possible allergen.
    Hand of researcher holding vacutainer tube above pool of blood and syringe. — Stock Photo
    Hand of researcher holding vacutainer tube above pool of blood and syringe.
    Scientist viewing results of genetic test on digital tablet. — Stock Photo
    Scientist viewing results of genetic test on digital tablet.
    Salesman standing next to car and reading brochure outside the showroom — Stock Photo
    Salesman standing next to car and reading brochure outside the showroom
    Teenage girl holding pipette while practicing chemistry experiment at desk in lab — Stock Photo
    Teenage girl holding pipette while practicing chemistry experiment at desk in lab
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Engineer holding dial calipers over blueprints on table. — Stock Photo
    Engineer holding dial calipers over blueprints on table.
    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.
    Engineer walking by water treatment plant ultraviolet ionization treatment room — Stock Photo
    Engineer walking by water treatment plant ultraviolet ionization treatment room
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Close-up of DNA autoradiogram on white background. — Stock Photo
    Close-up of DNA autoradiogram on white background.
    Close-up of petri dishes and pipette for genetic research. — Stock Photo
    Close-up of petri dishes and pipette for genetic research.
    Female staff using digital tablet while working in egg factory — Stock Photo
    Female staff using digital tablet while working in egg factory
    Man testing temperature of beer in wort while making beer at home brewery — Stock Photo
    Man testing temperature of beer in wort while making beer at home brewery