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    Optician testing senior man eyesight. — Stock Photo
    Optician testing senior man eyesight.
    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.
    Doctor using a lance to take a finger prick blood sample from a patient. — Stock Photo
    Doctor using a lance to take a finger prick blood sample from a patient.
    Blood samples in a multi well plate during a clinical trial. — Stock Photo
    Blood samples in a multi well plate during a clinical trial.
    Eggs in lighting control quality in egg factory — Stock Photo
    Eggs in lighting control quality in egg factory
    Asian family with kid testing car at showroom — Stock Photo
    Asian family with kid testing car at showroom
    Technician examining machine at meat factory — Stock Photo
    Technician examining machine at meat factory
    Athlete riding an exercise bike — Stock Photo
    Athlete riding an exercise bike
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic. — Stock Photo
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic.
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    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.
    Blood samples in a multi well plate during a clinical trial. — Stock Photo
    Blood samples in a multi well plate during a clinical trial.
    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.
    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.
    Female doctor testing urine with stick, close-up. — Stock Photo
    Female doctor testing urine with stick, close-up.
    Wine glasses set for degustation — Stock Photo
    Wine glasses set for degustation
    Senior man using peak flow meter, close-up. — Stock Photo
    Senior man using peak flow meter, close-up.
    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.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Close-up of sample on red liquid in centrifuge tube. — Stock Photo
    Close-up of sample on red liquid in centrifuge tube.
    Test tubes and baby pacifiers on plain background. — Stock Photo
    Test tubes and baby pacifiers on plain background.
    DNA home test kit. — Stock Photo
    DNA home test kit.
    Engineer walking by water treatment plant ultraviolet ionization treatment room — Stock Photo
    Engineer walking by water treatment plant ultraviolet ionization treatment room
    Cropped image of Female worker examining egg on digital egg monitor in egg factory — Stock Photo
    Cropped image of Female worker examining egg on digital egg monitor in egg factory
    Rear view of man with backpack standing on beach and testing drone in air — Stock Photo
    Rear view of man with backpack standing on beach and testing drone in air
    Machine for automated analysis of donated blood. — Stock Photo
    Machine for automated analysis of donated blood.
    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.
    Female staff examining egg on digital egg monitor in egg factory — Stock Photo
    Female staff examining egg on digital egg monitor in egg factory
    Two women working with essential oils — Stock Photo
    Two women working with essential oils
    Rear view of man with backpack testing drone in air on beach — Stock Photo
    Rear view of man with backpack testing drone in air on beach
    Senior woman doing a DNA test at home. — Stock Photo
    Senior woman doing a DNA test at home.
    Technician operating machine at industrial factory — Stock Photo
    Technician operating machine at industrial factory
    Variety of drugs on DNA autoradiogram, close-up. — Stock Photo
    Variety of drugs on DNA autoradiogram, close-up.
    Female patient at eye test with slit lamp in ophthalmology clinic. — Stock Photo
    Female patient at eye test with slit lamp in ophthalmology clinic.
    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
    Different types of meat and vegetables on wooden table — Stock Photo
    Different types of meat and vegetables on wooden table
    Doctor drawing blood — Stock Photo
    Doctor drawing blood
    Caucasian man working at a microbrewery pub, wearing white apron, inspecting a pint of beer, holding it in front of him. — Stock Photo
    Caucasian man working at a microbrewery pub, wearing white apron, inspecting a pint of beer, holding it in front of him.
    Close-up of technician examining machine at factory — Stock Photo
    Close-up of technician examining machine at factory
    Handsome salesman examining car at showroom — Stock Photo
    Handsome salesman examining car at showroom
    Teenage female practicing chemistry experiment in lab — Stock Photo
    Teenage female practicing chemistry experiment in lab
    Electrician repairing switchbox in hospital. — Stock Photo
    Electrician repairing switchbox in hospital.
    Close-up of worker examining glass product in glass factory — Stock Photo
    Close-up of worker examining glass product in glass factory
    Microbiologist working with petri dish and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dish and test tubes in laboratory.
    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.
    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 immunologist performing skin prick allergy testing on boy for possible allergen. — Stock Photo
    Female immunologist performing skin prick allergy testing on boy for possible allergen.
    Cropped shot of hands of woman testing cholesterol. — Stock Photo
    Cropped shot of hands of woman testing cholesterol.
    Elementary age boy in ophthalmology glasses while eye examination in clinic. — Stock Photo
    Elementary age boy in ophthalmology glasses while eye examination in clinic.
    Female college students practicing chemistry experiment at desk in lab — Stock Photo
    Female college students practicing chemistry experiment at desk in lab
    Engineer holding dial calipers over blueprints on table. — Stock Photo
    Engineer holding dial calipers over blueprints on table.
    Variety of potential drugs in pharmaceutical vials and test tubes. — Stock Photo
    Variety of potential drugs in pharmaceutical vials and test tubes.
    Female scientist in laboratory looking at glass flask with dissolved samples of soil. — Stock Photo
    Female scientist in laboratory looking at glass flask with dissolved samples of soil.
    Hands of scientist using pipette and petri dish — Stock Photo
    Hands of scientist using pipette and petri dish
    Graduated pipette and test tubes — Stock Photo
    Graduated pipette and test tubes
    Test tubes with urine samples for analysis, studio shot. — Stock Photo
    Test tubes with urine samples for analysis, studio shot.
    Hand holding multi well plate with samples with DNA results in background. — Stock Photo
    Hand holding multi well plate with samples with DNA results in background.
    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.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Female staff examining eggs on conveyor belt in egg factory — Stock Photo
    Female staff examining eggs on conveyor belt in egg factory