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    Female doctor putting headphones on boy having hearing test. — Stock Photo
    Female doctor putting headphones on boy having hearing test.
    Close-up view of medical syringes with blood sample. — Stock Photo
    Close-up view of medical syringes with blood sample.
    Mature doctor testing heart of male athlete on treadmill. — Stock Photo
    Mature doctor testing heart of male athlete on treadmill.
    Crop scientist using pipette and scales while making research. — Stock Photo
    Crop scientist using pipette and scales while making research.
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Colorful fruits and vegetables in test tubes, studio shot. — Stock Photo
    Colorful fruits and vegetables in test tubes, studio shot.
    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.
    Scientists writing note on glass wall at lab — Stock Photo
    Scientists writing note on glass wall at lab
    Crop anonymous doctor in medical glove demonstrating test tube with blood sample on white background — Stock Photo
    Crop anonymous doctor in medical glove demonstrating test tube with blood sample on white background
    Hospital radiologist pointing at CT scans. — Stock Photo
    Hospital radiologist pointing at CT scans.
    Female doctor performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female doctor performing allergy skin prick test on little boy with mother in immunologist office.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Optometrist adjusting the retinograph during study of the eyesight of a happy black woman — Stock Photo
    Optometrist adjusting the retinograph during study of the eyesight of a happy black woman
    Female hands feeling forehead of baby for measuring temperature. — Stock Photo
    Female hands feeling forehead of baby for measuring temperature.
    Optometry devices closeup view — Stock Photo
    Optometry devices closeup view
    Female patient at eye examination in ophthalmology clinic. — Stock Photo
    Female patient at eye examination in ophthalmology clinic.
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    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.
    Patient undergoing skin prick test in allergy clinic. — Stock Photo
    Patient undergoing skin prick test in allergy clinic.
    Mother helping son test blood sugar — Stock Photo
    Mother helping son test blood sugar
    DNA home test kit. — Stock Photo
    DNA home test kit.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Male patient in hospital gown sitting on bed holding urine sample container. — Stock Photo
    Male patient in hospital gown sitting on bed holding urine sample container.
    Racks of test tubes with red lids on blue table. — Stock Photo
    Racks of test tubes with red lids on blue table.
    Scientist examining bacterial sample under microscope. — Stock Photo
    Scientist examining bacterial sample under microscope.
    Curious kids conducting science experiment — Stock Photo
    Curious kids conducting science experiment
    Motor testing multimeter and tools on floor at garage — Stock Photo
    Motor testing multimeter and tools on floor at garage
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Senior mixed race man with female doctor home visiting wearing face masks taking swab test. healthcare and hygiene during coronavirus covid 19 pandemic. — Stock Photo
    Senior mixed race man with female doctor home visiting wearing face masks taking swab test. healthcare and hygiene during coronavirus covid 19 pandemic.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Tubes containing blood samples — Stock Photo
    Tubes containing blood samples
    Optometrist explaining eyesight report over digital tablet in clinic — Stock Photo
    Optometrist explaining eyesight report over digital tablet in clinic
    Attentive senior employee writing in notebook results while adult female colleague in sterile clothes using digital device for test food quality in canteen — Stock Photo
    Attentive senior employee writing in notebook results while adult female colleague in sterile clothes using digital device for test food quality in canteen
    Researcher man putting on white costume before research in lab. — Stock Photo
    Researcher man putting on white costume before research in lab.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Blood samples for testing in microcentrifuge tubes. — Stock Photo
    Blood samples for testing in microcentrifuge tubes.
    Close-up of agar plate with stool culture. — Stock Photo
    Close-up of agar plate with stool culture.
    Doctor holding digital tablet and patient lying on x ray machine in hospital — Stock Photo
    Doctor holding digital tablet and patient lying on x ray machine in hospital
    Green spinach in test tube, studio shot. — Stock Photo
    Green spinach in test tube, studio shot.
    Doctor testing patient blood sugar for diabetes in examination room — Stock Photo
    Doctor testing patient blood sugar for diabetes in examination room
    Senior woman using pulse oximeter and smart phone, measuring oxygen saturation. — Stock Photo
    Senior woman using pulse oximeter and smart phone, measuring oxygen saturation.
    Elder man checking his arterial pressure with machine — Stock Photo
    Elder man checking his arterial pressure with machine
    Fluid pouring into laboratory glassware. — Stock Photo
    Fluid pouring into laboratory glassware.
    College students taking test at desk in classroom — Stock Photo
    College students taking test at desk in classroom
    Teacher and students during chemistry lesson, wearing protective eyewear and looking at test tubes — Stock Photo
    Teacher and students during chemistry lesson, wearing protective eyewear and looking at test tubes
    Microbiologist taking bacterial sample on microscope slide. — Stock Photo
    Microbiologist taking bacterial sample on microscope slide.
    Water department engineer standing in chemical treatment room — Stock Photo
    Water department engineer standing in chemical treatment room
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office.
    Top view of bread and pasta with celiac test equipment, studio shot. — Stock Photo
    Top view of bread and pasta with celiac test equipment, studio shot.
    Chinese woman sitting in car and holding steering wheel — Stock Photo
    Chinese woman sitting in car and holding steering wheel
    Man having eye test with special equipment. — Stock Photo
    Man having eye test with special equipment.
    Scientist using a machine for experiment in lab — Stock Photo
    Scientist using a machine for experiment in lab
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Person in latex glove holding test tube with ear of wheat — Stock Photo
    Person in latex glove holding test tube with ear of wheat
    Close-up of scientist hand holding test tube with fluorescent chemical fluid. — Stock Photo
    Close-up of scientist hand holding test tube with fluorescent chemical fluid.
    Professional home care assistant in protective uniform and mask examining senior woman and checking blood pressure while visiting patient at home during coronavirus outbreak — Stock Photo
    Professional home care assistant in protective uniform and mask examining senior woman and checking blood pressure while visiting patient at home during coronavirus outbreak
    Scientist hand sampling water in test tube for quality testing. — Stock Photo
    Scientist hand sampling water in test tube for quality testing.
    Tests on desks in empty classroom interior — Stock Photo
    Tests on desks in empty classroom interior