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    Female doctor putting headphones on boy having hearing test. — Stock Photo
    Female doctor putting headphones on boy having hearing test.
    Female Asian scientist examining plants in laboratory. — Stock Photo
    Female Asian scientist examining plants in laboratory.
    Cropped image of worker examining eggs quality in lighting control in egg factory — Stock Photo
    Cropped image of worker examining eggs quality in lighting control in egg factory
    Scientist viewing sample on glass slide before light microscope. — Stock Photo
    Scientist viewing sample on glass slide before light microscope.
    Caucasian and African American men working in a microbrewery, wearing high visible vests, using a tablet and holding a bad — Stock Photo
    Caucasian and African American men working in a microbrewery, wearing high visible vests, using a tablet and holding a bad
    Grains in plastic cup for agriculture research, conceptual image. — Stock Photo
    Grains in plastic cup for agriculture research, conceptual image.
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder. — Stock Photo
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder.
    Urine samples for analysis and test strip, studio shot. — Stock Photo
    Urine samples for analysis and test strip, studio shot.
    Close-up of worker examining glass product in glass factory — Stock Photo
    Close-up of worker examining glass product in glass 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.
    Nurse takes sample for covid-19 — Stock Photo
    Nurse takes sample for covid-19
    Technicians examining meat processing machine at meat factory — Stock Photo
    Technicians examining meat processing machine at meat factory
    Senior man using peak flow meter, close-up. — Stock Photo
    Senior man using peak flow meter, close-up.
    Genetic Test. Tube and swab for DNA collection from mouth. — Stock Photo
    Genetic Test. Tube and swab for DNA collection from mouth.
    Technician examining machine at meat factory — Stock Photo
    Technician examining machine at meat factory
    Hands of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Hands of immunologist performing skin prick allergy testing on boy.
    Grains and pulses in plastic cups for agriculture research, conceptual image. — Stock Photo
    Grains and pulses in plastic cups for agriculture research, conceptual image.
    Happy Carpenter standing near repaired door at home — Stock Photo
    Happy Carpenter standing near repaired door at home
    Female biologist in white coat pouring water in soil sample. — Stock Photo
    Female biologist in white coat pouring water in soil sample.
    Patient undergoing applanation tonometry and eye pressure test in ophthalmology clinic. — Stock Photo
    Patient undergoing applanation tonometry and eye pressure test in ophthalmology clinic.
    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.
    Close-up of human blood and various hematology samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various hematology samples in test tubes while screening in medical lab.
    Technician writing on clipboard at industrial factory — Stock Photo
    Technician writing on clipboard at industrial factory
    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
    Scientist holding DNA sample in tube with autoradiograph on DNA gel. — Stock Photo
    Scientist holding DNA sample in tube with autoradiograph on DNA gel.
    Back view of woman during medical diagnosis of breast in modern clinic — Stock Photo
    Back view of woman during medical diagnosis of breast in modern clinic
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Ophthalmologist carrying out visual acuity test with little patient. — Stock Photo
    Ophthalmologist carrying out visual acuity test with little patient.
    Testing blood sample from a multi well plate during a clinical investigation. — Stock Photo
    Testing blood sample from a multi well plate during a clinical investigation.
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.
    Scientist pipetting sample into vial in laboratory. — Stock Photo
    Scientist pipetting sample into vial in laboratory.
    Toddler girl testing the water at edge of swimming pool — Stock Photo
    Toddler girl testing the water at edge of swimming pool
    Female scientist working with test tube. — Stock Photo
    Female scientist working with test tube.
    Close-up of rack of sample tubes with blood for analysis. — Stock Photo
    Close-up of rack of sample tubes with blood for analysis.
    Senior man using peak flow meter, close-up. — Stock Photo
    Senior man using peak flow meter, close-up.
    African American man working at a microbrewery pouring beer from a vat into a glass for inspection with wooden barrels in the background. — Stock Photo
    African American man working at a microbrewery pouring beer from a vat into a glass for inspection with wooden barrels in the background.
    Scientist preparing chemical liquid in laboratory flask. — Stock Photo
    Scientist preparing chemical liquid in laboratory flask.
    Glasses of rose wine — Stock Photo
    Glasses of rose wine
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    Female scientist holding blood sample by microscope in laboratory. — Stock Photo
    Female scientist holding blood sample by microscope in laboratory.
    Asian girl with mother having eye test in clinic. — Stock Photo
    Asian girl with mother having eye test in clinic.
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Technician operating machine at industrial factory — Stock Photo
    Technician operating machine at industrial factory
    Scientist holding petri dish with biohazard warning in microbiology lab. — Stock Photo
    Scientist holding petri dish with biohazard warning in microbiology lab.
    Preschooler coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler coloring shapes with colorful pens for developmental psychology test in psychologist office.
    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 testing solar panel at power plant — Stock Photo
    Engineer testing solar panel at power plant
    Woman trying out perfume in drugstore — Stock Photo
    Woman trying out perfume in drugstore
    Senior woman doing a mailed DNA test at home. — Stock Photo
    Senior woman doing a mailed DNA test at home.
    Female scientist using pipette in laboratory — Stock Photo
    Female scientist using pipette in laboratory
    Cropped view of overweight man using peak flow meter. — Stock Photo
    Cropped view of overweight man using peak flow meter.
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    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.
    Female audiologist putting headphones on boy having hearing test. — Stock Photo
    Female audiologist putting headphones on boy having hearing test.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Senior woman doing a DNA test at home. — Stock Photo
    Senior woman doing a DNA test at home.
    Male worker examining glass product in glass factory — Stock Photo
    Male worker examining glass product in glass factory