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    Lab technician adding liquid to graduated cylinder — Stock Photo
    Lab technician adding liquid to graduated cylinder
    Optician using phoropter for eye examination of woman. — Stock Photo
    Optician using phoropter for eye examination of woman.
    Close-up of colorist hands mixing and testing red hair dye on paper. — Stock Photo
    Close-up of colorist hands mixing and testing red hair dye on paper.
    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.
    Black woman in optometry cabinet during study of the eyesight — Stock Photo
    Black woman in optometry cabinet during study of the eyesight
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil. — Stock Photo
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil.
    Engineer with equipment inspecting solar panels at sunny power plant — Stock Photo
    Engineer with equipment inspecting solar panels at sunny power plant
    Water treatment engineer in treatment room — Stock Photo
    Water treatment engineer in treatment room
    Close-up of pipetting sample into multiwell plate for analysis in laboratory. — Stock Photo
    Close-up of pipetting sample into multiwell plate for analysis in laboratory.
    Lab technician carrying cell-based testing kit in bioengineering laboratory. — Stock Photo
    Lab technician carrying cell-based testing kit in bioengineering laboratory.
    High angle view of a Caucasian and African American men wearing high visibility vest, working in a microbrewery, checking bottles of beer. — Stock Photo
    High angle view of a Caucasian and African American men wearing high visibility vest, working in a microbrewery, checking bottles of beer.
    Urine sample and diagnostic dipstick on surgical tray. — Stock Photo
    Urine sample and diagnostic dipstick on surgical tray.
    Female audiologist putting headphones on boy having hearing test. — Stock Photo
    Female audiologist putting headphones on boy having hearing test.
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Pipetting samples into microcentrifuge tubes — Stock Photo
    Pipetting samples into microcentrifuge tubes
    Blood sampling vacutainer tubes in rack, close-up. — Stock Photo
    Blood sampling vacutainer tubes in rack, close-up.
    Nurse takes sample for covid-19 — Stock Photo
    Nurse takes sample for covid-19
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Optician using slit lamp for eye examination preteen girl. — Stock Photo
    Optician using slit lamp for eye examination preteen girl.
    Microbiologist working with petri dish and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dish and test tubes in laboratory.
    Lab technician removing sample vial cap — Stock Photo
    Lab technician removing sample vial cap
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Microbiologist working with petri dishes and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dishes and test tubes in laboratory.
    Technicians examining meat processing machine at meat factory — Stock Photo
    Technicians examining meat processing machine at meat factory
    Close-up of hands of mature woman using paper strip to test blood glucose. — Stock Photo
    Close-up of hands of mature woman using paper strip to test blood glucose.
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter. — Stock Photo
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter.
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Close-up of technicians operating machine at meat factory — Stock Photo
    Close-up of technicians operating machine at meat factory
    Man having eye test with special equipment. — Stock Photo
    Man having eye test with special equipment.
    Scientist closing lid of vial while laboratory testing. — Stock Photo
    Scientist closing lid of vial while laboratory testing.
    Police evidence including finger print, DNA swab and results. — Stock Photo
    Police evidence including finger print, DNA swab and results.
    Ophthalmologist performing visual field testing at female patient. — Stock Photo
    Ophthalmologist performing visual field testing at female patient.
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Light microscope with petri dishes on blue background. — Stock Photo
    Light microscope with petri dishes on blue background.
    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.
    Female patient beside digital mammography unit — Stock Photo
    Female patient beside digital mammography unit
    Technician writing on clipboard at industrial factory — Stock Photo
    Technician writing on clipboard at industrial factory
    Mid section of man working at a microbrewery pouring beer from a vat into a glass for inspection. — Stock Photo
    Mid section of man working at a microbrewery pouring beer from a vat into a glass for inspection.
    Caucasian man wearing high visibility vest, working in a microbrewery, checking bottles of beer with an African American man working in the background. — Stock Photo
    Caucasian man wearing high visibility vest, working in a microbrewery, checking bottles of beer with an African American man working in the background.
    Close-up of trowel with soil above samples separated in containers. — Stock Photo
    Close-up of trowel with soil above samples separated in containers.
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test. — Stock Photo
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test.
    Preteen girl breathing into peak flow meter and looking at nurse. — Stock Photo
    Preteen girl breathing into peak flow meter and looking at nurse.
    Scientist holding petri dish and syringe. — Stock Photo
    Scientist holding petri dish and syringe.
    Scientist hands holding urine sample in container and chart, studio shot. — Stock Photo
    Scientist hands holding urine sample in container and chart, studio shot.
    Patient undergoing skin prick test in allergy clinic. — Stock Photo
    Patient undergoing skin prick test in allergy clinic.
    Mature woman testing blood pressure with machine. — Stock Photo
    Mature woman testing blood pressure with machine.
    Close-up of man testing temperature of beer in wort while making beer at home brewery — Stock Photo
    Close-up of man testing temperature of beer in wort while making beer at home brewery
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Blood test kit and and analysis results — Stock Photo
    Blood test kit and and analysis results
    Female engineer in clean suit using equipment in fiber optics research and testing laboratory — Stock Photo
    Female engineer in clean suit using equipment in fiber optics research and testing laboratory
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Optician using phoropter for eye examination preteen girl. — Stock Photo
    Optician using phoropter for eye examination preteen girl.
    Female scientist pouring dissolved soil sample into chemistry beaker. — Stock Photo
    Female scientist pouring dissolved soil sample into chemistry beaker.
    Close up mid section view of man working in a microbrewery, checking green glass bottles of beer ready for delivery. — Stock Photo
    Close up mid section view of man working in a microbrewery, checking green glass bottles of beer ready for delivery.
    Rear view of an African American man wearing checkered shirt and high visible vest, working in a microbrewery, checking equipment. — Stock Photo
    Rear view of an African American man wearing checkered shirt and high visible vest, working in a microbrewery, checking equipment.
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory. — Stock Photo
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory.
    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.
    Preteen boy undergoing lung function test with female nurse. — Stock Photo
    Preteen boy undergoing lung function test with female nurse.
    Boy having hearing test in female audiologist office. — Stock Photo
    Boy having hearing test in female audiologist office.
    Cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cell-based testing kit in bioengineering laboratory.