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    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Water department technician using flow rate sensor — Stock Photo
    Water department technician using flow rate sensor
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Cropped unrecognizable woman hands holding a pregnancy test besides a window — Stock Photo
    Cropped unrecognizable woman hands holding a pregnancy test besides a window
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Angiogram examination in clinic — Stock Photo
    Angiogram examination in clinic
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Male laboratory assistant holding test tube rack. — Stock Photo
    Male laboratory assistant holding test tube rack.
    Focused high school girl student taking exam at desk in classroom — Stock Photo
    Focused high school girl student taking exam at desk in classroom
    Adult employee checking food quality in canteen — Stock Photo
    Adult employee checking food quality in canteen
    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Optometrist using an ophthalmoscope during study of the eyesight of a black woman — Stock Photo
    Optometrist using an ophthalmoscope during study of the eyesight of a black woman
    Ophthalmologist examining patient with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining patient with slit lamp in clinic.
    Curious students conducting scientific experiment, watching liquid in vial in laboratory classroom — Stock Photo
    Curious students conducting scientific experiment, watching liquid in vial in laboratory classroom
    Focused male college student taking test at desk in classroom — Stock Photo
    Focused male college student taking test at desk in classroom
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Water department technician opening fire hydrant to flush water pipes — Stock Photo
    Water department technician opening fire hydrant to flush water pipes
    Test tubes with spices — Stock Photo
    Test tubes with spices
    Close-up of tube and syringe in hematology laboratory with scientist in background. — Stock Photo
    Close-up of tube and syringe in hematology laboratory with scientist in background.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Female patient receiving a ultrasound scan on the neck in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the neck in hospital
    Close-up of blood sample in kidney dish. — Stock Photo
    Close-up of blood sample in kidney dish.
    Female bioarchaeologist analyzing micro tube with human osteological material in laboratory. — Stock Photo
    Female bioarchaeologist analyzing micro tube with human osteological material in laboratory.
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory — Stock Photo
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory
    Female immunologist wiping boy arm after skin prick allergy testing. — Stock Photo
    Female immunologist wiping boy arm after skin prick allergy testing.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Cropped image of Water department technician removing flushing adapter — Stock Photo
    Cropped image of Water department technician removing flushing adapter
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Male quality control specialist in sterile mask studying alcoholic liquid at table against professional equipment in factory — Stock Photo
    Male quality control specialist in sterile mask studying alcoholic liquid at table against professional equipment in factory
    Pensive female college student taking test in classroom — Stock Photo
    Pensive female college student taking test in classroom
    Young female medical worker using microscope at workplace on blurred background — Stock Photo
    Young female medical worker using microscope at workplace on blurred background
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Monitoring respiratory illness with digital spirometer. — Stock Photo
    Monitoring respiratory illness with digital spirometer.
    Side view of concentrated skilled male mechanic using multimeter while testing battery of electric scooter in workshop — Stock Photo
    Side view of concentrated skilled male mechanic using multimeter while testing battery of electric scooter in workshop
    Female medical specialist in protective uniform, latex gloves and face mask doing mouth swab test with cotton bud on African American female patient in clinic during coronavirus outbreak — Stock Photo
    Female medical specialist in protective uniform, latex gloves and face mask doing mouth swab test with cotton bud on African American female patient in clinic during coronavirus outbreak
    Laboratory technicians working together in blood bank — Stock Photo
    Laboratory technicians working together in blood bank
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Female doctor preparing the vaccine for covid19 — Stock Photo
    Female doctor preparing the vaccine for covid19
    Unrecognizable pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic — Stock Photo
    Unrecognizable pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic
    Mid section of scientists doing experiment in lab — Stock Photo
    Mid section of scientists doing experiment in lab
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Podiatrist making procedure with patient — Stock Photo
    Podiatrist making procedure with patient
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital — Stock Photo
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital
    Water department engineer standing in chemical treatment room — Stock Photo
    Water department engineer standing in chemical treatment room
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Female immunologist performing skin prick allergy testing on preschooler boy. — Stock Photo
    Female immunologist performing skin prick allergy testing on preschooler boy.
    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
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Girl holding test tubes with chemicals — Stock Photo
    Girl holding test tubes with chemicals
    School kids wearing protective mask to Protect Against Covid-19 with pens and notebooks writing test in Classroom,Education,Elementary school,Learning and people concept. — Stock Photo
    School kids wearing protective mask to Protect Against Covid-19 with pens and notebooks writing test in Classroom,Education,Elementary school,Learning and people concept.
    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.
    Lab technician igniting Bunsen burner — Stock Photo
    Lab technician igniting Bunsen burner
    Petri dish with bacteria — Stock Photo
    Petri dish with bacteria
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Female scientist opening lid of machine in lab — Stock Photo
    Female scientist opening lid of machine in lab
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Laboratory technicians analyzing blood sample in blood bank — Stock Photo
    Laboratory technicians analyzing blood sample in blood bank
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Female agronomist taking notes in field of soil. — Stock Photo
    Female agronomist taking notes in field of soil.