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    Human brain and electrodes, brain stimulation conceptual image. — Stock Photo
    Human brain and electrodes, brain stimulation conceptual image.
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Elementary age boy in ophthalmology glasses while eye examination in clinic. — Stock Photo
    Elementary age boy in ophthalmology glasses while eye examination in clinic.
    Water department engineer standing in chemical treatment room — Stock Photo
    Water department engineer standing in chemical treatment room
    Close-up of colorist hands mixing and testing red hair dye on paper. — Stock Photo
    Close-up of colorist hands mixing and testing red hair dye on paper.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Female staff examining eggs on conveyor belt in egg factory — Stock Photo
    Female staff examining eggs on conveyor belt in egg factory
    Mid section of business people using invisible digital tablets in meeting — Stock Photo
    Mid section of business people using invisible digital tablets in meeting
    Nurse takes sample for covid-19 — Stock Photo
    Nurse takes sample for covid-19
    Female worker using digital tablet in egg factory — Stock Photo
    Female worker using digital tablet in egg factory
    Close-up of technician examining machine at factory — Stock Photo
    Close-up of technician examining machine at factory
    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.
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    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 worker examining glass product in glass factory — Stock Photo
    Close-up of worker examining glass product in glass factory
    Scientist holding syringe over variety of pharmaceutical vials. — Stock Photo
    Scientist holding syringe over variety of pharmaceutical vials.
    Asian family with kid testing car at showroom — Stock Photo
    Asian family with kid testing car at showroom
    Optician testing senior man eyesight. — Stock Photo
    Optician testing senior man eyesight.
    Lab chemist preparing graduated cylinder for standard solution — Stock Photo
    Lab chemist preparing graduated cylinder for standard solution
    Hand in latex glove holding peanuts — Stock Photo
    Hand in latex glove holding peanuts
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand. — Stock Photo
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand.
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Female hands feeling forehead of baby for measuring temperature. — Stock Photo
    Female hands feeling forehead of baby for measuring temperature.
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    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 trowel with soil above samples separated in containers. — Stock Photo
    Close-up of trowel with soil above samples separated in containers.
    Eggs in lighting control quality in egg factory — Stock Photo
    Eggs in lighting control quality in egg factory
    Side view of male worker working in glass factory — Stock Photo
    Side view of male worker working in glass factory
    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
    Urine sample container on toilet in bathroom, studio shot. — Stock Photo
    Urine sample container on toilet in bathroom, studio shot.
    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory. — Stock Photo
    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory.
    Grains and pulses in plastic cups for agriculture research, conceptual image. — Stock Photo
    Grains and pulses in plastic cups for agriculture research, conceptual image.
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder. — Stock Photo
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder.
    Skillful caucasian plumber working on bathroom sink — Stock Photo
    Skillful caucasian plumber working on bathroom sink
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Microbiologist working with petri dishes and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dishes and test tubes in laboratory.
    Technician operating machine at industrial factory — Stock Photo
    Technician operating machine at industrial factory
    Female patient beside digital mammography unit — Stock Photo
    Female patient beside digital mammography unit
    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.
    Preteen girl breathing into peak flow meter and looking at nurse. — Stock Photo
    Preteen girl breathing into peak flow meter and looking at nurse.
    Scientist holding DNA sample in tube with autoradiograph on DNA gel. — Stock Photo
    Scientist holding DNA sample in tube with autoradiograph on DNA gel.
    Engineer with walkie-talkie inspecting solar panel at power plant — Stock Photo
    Engineer with walkie-talkie inspecting solar panel at power plant
    Female doctor testing urine with stick, close-up. — Stock Photo
    Female doctor testing urine with stick, close-up.
    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.
    Side view of female worker working in glass factory — Stock Photo
    Side view of female worker working in glass factory
    Preteen girl breathing into peak flow meter and looking in camera. — Stock Photo
    Preteen girl breathing into peak flow meter and looking in camera.
    Technicians examining machine at industrial factory — Stock Photo
    Technicians examining machine at industrial factory
    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.
    Close up of worker using soldering iron in glass factory — Stock Photo
    Close up of worker using soldering iron in glass factory
    Cropped shot of hands of woman testing cholesterol. — Stock Photo
    Cropped shot of hands of woman testing cholesterol.
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Lab technician holding sample in flame — Stock Photo
    Lab technician holding sample in flame
    Scientist hand sampling water in flask for quality testing. — Stock Photo
    Scientist hand sampling water in flask for quality testing.
    Cropped image of Water department technician removing flushing adapter — Stock Photo
    Cropped image of Water department technician removing flushing adapter
    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.
    Side view of female worker working in glass factory — Stock Photo
    Side view of female worker working in glass factory
    Engineer with equipment inspecting solar panels at sunny power plant — Stock Photo
    Engineer with equipment inspecting solar panels at sunny power plant
    Close-up of petri dish and dropping pipette for genetic research. — Stock Photo
    Close-up of petri dish and dropping pipette for genetic research.
    Blood test kit and and analysis results — Stock Photo
    Blood test kit and and analysis results