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    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Senior man using peak flow meter on white background. — Stock Photo
    Senior man using peak flow meter on white background.
    Peas in testing tubes — Stock Photo
    Peas in testing tubes
    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.
    Pill in Petri dish on gray background. — Stock Photo
    Pill in Petri dish on gray background.
    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.
    Woman smelling at red wine glass — Stock Photo
    Woman smelling at red wine glass
    Pills in a Petri dish — Stock Photo
    Pills in a Petri dish
    Portrait of butcher operating machine at meat factory — Stock Photo
    Portrait of butcher operating machine at meat factory
    Focused male coffee roaster testing coffee — Stock Photo
    Focused male coffee roaster testing coffee
    Female scientist taking testing tube from tray for scientific research. — Stock Photo
    Female scientist taking testing tube from tray for scientific research.
    Water department engineer standing in chemical treatment room — Stock Photo
    Water department engineer standing in chemical treatment room
    Stool culture, colorful image — Stock Photo
    Stool culture, colorful image
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    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.
    Woman doing finger prick test. — Stock Photo
    Woman doing finger prick test.
    Test tubes with urine samples for analysis, studio shot. — Stock Photo
    Test tubes with urine samples for analysis, studio shot.
    Medical worker gloved hands holding test stick in urine sample tube. — Stock Photo
    Medical worker gloved hands holding test stick in urine sample tube.
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Pile of filled medical tesing tubes — Stock Photo
    Pile of filled medical tesing tubes
    Ophthalmologist examining patient with slit lamp and magnifying lens. — Stock Photo
    Ophthalmologist examining patient with slit lamp and magnifying lens.
    Female psychologist helping boy coloring shapes with colorful pens for developmental psychology test. — Stock Photo
    Female psychologist helping boy coloring shapes with colorful pens for developmental psychology test.
    Scientist holding DNA sample in tube with autoradiograph on DNA gel. — Stock Photo
    Scientist holding DNA sample in tube with autoradiograph on DNA gel.
    Close-up of doctor holding prepared antibodies syringe. — Stock Photo
    Close-up of doctor holding prepared antibodies syringe.
    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.
    Spirometry. Using digital spirometer with smart phone app, testing lungs. — Stock Photo
    Spirometry. Using digital spirometer with smart phone app, testing lungs.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Female worker using digital tablet in egg factory — Stock Photo
    Female worker using digital tablet in egg factory
    Female scientist examining bacterial culture growing in petri dish. — Stock Photo
    Female scientist examining bacterial culture growing in petri dish.
    Medical samples — Stock Photo
    Medical samples
    Bacterial contamination tests — Stock Photo
    Bacterial contamination tests
    Handsome salesman examining car at showroom — Stock Photo
    Handsome salesman examining car at showroom
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    Lab technician adding liquid from graduated cylinder to beaker — Stock Photo
    Lab technician adding liquid from graduated cylinder to beaker
    Female scientist taking testing tube from tray for scientific research. — Stock Photo
    Female scientist taking testing tube from tray for scientific research.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Close-up view of researcher hand taking blood sample from rack of medical samples. — Stock Photo
    Close-up view of researcher hand taking blood sample from rack of medical samples.
    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.
    Carpenter fixing door at home — Stock Photo
    Carpenter fixing door at home
    African American man wearing blue vest, holding a file and writing numbers while counting tanks in a storage space in a microbrewery. — Stock Photo
    African American man wearing blue vest, holding a file and writing numbers while counting tanks in a storage space in a microbrewery.
    Close up of a Caucasian man with long hair working in a microbrewery, holding a glass of beer, smelling it for inspection. — Stock Photo
    Close up of a Caucasian man with long hair working in a microbrewery, holding a glass of beer, smelling it for inspection.
    Two women working with essential oils — Stock Photo
    Two women working with essential oils
    Teenage girls practicing experiment while standing in lab — Stock Photo
    Teenage girls practicing experiment while standing in lab
    Genetic Test. Tube and swab for DNA collection from mouth. — Stock Photo
    Genetic Test. Tube and swab for DNA collection from mouth.
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Close-up of petri dish and dropping pipette for genetic research. — Stock Photo
    Close-up of petri dish and dropping pipette for genetic research.
    Scientist hand sampling water in flask for quality testing. — Stock Photo
    Scientist hand sampling water in flask for quality testing.
    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.
    Man testing out hand made bow — Stock Photo
    Man testing out hand made bow
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Senior man using incentive speedometer with tube. — Stock Photo
    Senior man using incentive speedometer with tube.
    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
    Technician examining machine at industrial factory — Stock Photo
    Technician examining machine at industrial factory
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Preteen girl breathing into peak flow meter and looking at nurse. — Stock Photo
    Preteen girl breathing into peak flow meter and looking at nurse.
    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.
    Portrait of technician operating machine at meat factory — Stock Photo
    Portrait of technician operating machine at meat factory
    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
    Close-up of petri dishes and pipette for genetic research. — Stock Photo
    Close-up of petri dishes and pipette for genetic research.