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    Police evidence including finger print, DNA swab and results. — Stock Photo
    Police evidence including finger print, DNA swab and results.
    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.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Culturing anaerobic bacteria — Stock Photo
    Culturing anaerobic bacteria
    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.
    Lab technician igniting Bunsen burner — Stock Photo
    Lab technician igniting Bunsen burner
    Female doctor putting headphones on boy having hearing test. — Stock Photo
    Female doctor putting headphones on boy having hearing test.
    Blood samples for testing in microcentrifuge tubes. — Stock Photo
    Blood samples for testing in microcentrifuge tubes.
    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.
    Syringe dripping blood droplet into test tubes. — Stock Photo
    Syringe dripping blood droplet into test tubes.
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.
    Microbiology technician working with bacteria strains in petri dish. — Stock Photo
    Microbiology technician working with bacteria strains in petri dish.
    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.
    Man having eye test with special equipment. — Stock Photo
    Man having eye test with special equipment.
    Male adult engineer in water treatment plant — Stock Photo
    Male adult engineer in water treatment plant
    Scientist holding petri dish and swab. — Stock Photo
    Scientist holding petri dish and swab.
    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.
    Athlete riding an exercise bike — Stock Photo
    Athlete riding an exercise bike
    Optician using phoropter for eye examination preteen girl. — Stock Photo
    Optician using phoropter for eye examination preteen girl.
    Portrait of a Caucasian man wearing high visibility vest, working in a microbrewery, leaning on bottles ready for delivery and looking straight into a camera. — Stock Photo
    Portrait of a Caucasian man wearing high visibility vest, working in a microbrewery, leaning on bottles ready for delivery and looking straight into a camera.
    Male adult engineer in water treatment plant — Stock Photo
    Male adult engineer in water treatment plant
    Doctor drawing blood — Stock Photo
    Doctor drawing blood
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cell-based testing kit in bioengineering laboratory.
    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.
    Elementary age boy in ophthalmology glasses while eye examination in clinic. — Stock Photo
    Elementary age boy in ophthalmology glasses while eye examination in clinic.
    Urine sample for analysis and test strip with chart, studio shot. — Stock Photo
    Urine sample for analysis and test strip with chart, studio shot.
    Female microbiologist pipetting into petri dishes in laboratory. — Stock Photo
    Female microbiologist pipetting into petri dishes in laboratory.
    Technician examining machine at meat factory — Stock Photo
    Technician examining machine at meat factory
    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.
    Female staff examining egg on digital egg monitor in egg factory — Stock Photo
    Female staff examining egg on digital egg monitor in egg factory
    Mid section view of man working at a microbrewery, wearing a high visibility vest, inspecting a tank pipe. — Stock Photo
    Mid section view of man working at a microbrewery, wearing a high visibility vest, inspecting a tank pipe.
    Urine sample container on toilet in bathroom, studio shot. — Stock Photo
    Urine sample container on toilet in bathroom, studio shot.
    Lab technician recording data from sample test — Stock Photo
    Lab technician recording data from sample test
    Female patient beside digital mammography unit — Stock Photo
    Female patient beside digital mammography unit
    Pipetting samples into microcentrifuge tubes — Stock Photo
    Pipetting samples into microcentrifuge tubes
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Hands of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Hands of scientist in laboratory mixing samples of soil with reagent.
    Caucasian and African American men working in a microbrewery, wearing high visibility vests, inspecting one of four vats set along the wall. — Stock Photo
    Caucasian and African American men working in a microbrewery, wearing high visibility vests, inspecting one of four vats set along the wall.
    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.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Blood samples — Stock Photo
    Blood samples
    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    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
    Female hands testing blood sample — Stock Photo
    Female hands testing blood sample
    Medical samples — Stock Photo
    Medical samples
    Electrician repairing switchbox in hospital. — Stock Photo
    Electrician repairing switchbox in hospital.
    Mid section of male worker working in glass factory — Stock Photo
    Mid section of male worker working in glass factory
    Senior man exhaling into peak flow reader. — Stock Photo
    Senior man exhaling into peak flow reader.
    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.
    Test tubes with urine samples for analysis, studio shot. — Stock Photo
    Test tubes with urine samples for analysis, studio shot.
    Female patient beside digital mammography unit — Stock Photo
    Female patient beside digital mammography unit
    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.
    Engineer holding dial calipers over blueprints on table. — Stock Photo
    Engineer holding dial calipers over blueprints on table.
    Close-up of petri dishes and pipette for genetic research. — Stock Photo
    Close-up of petri dishes and pipette for genetic research.
    Optician testing senior man eyesight. — Stock Photo
    Optician testing senior man eyesight.
    Engineer holding dial calipers over blueprints on table. — Stock Photo
    Engineer holding dial calipers over blueprints on table.
    Attentive female staff examining egg in egg factory — Stock Photo
    Attentive female staff examining egg in egg factory
    Lab technician holding sample in flame — Stock Photo
    Lab technician holding sample in flame