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    Forensic evidence collection with knife for DNA forensic test. — Stock Photo
    Forensic evidence collection with knife for DNA forensic test.
    Nurse takes sample for covid-19 — Stock Photo
    Nurse takes sample for covid-19
    Ophthalmologist examining female patient with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining female patient with slit lamp in clinic.
    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.
    Close-up of male scientist with digital tablet examining plants in greenhouse — Stock Photo
    Close-up of male scientist with digital tablet examining plants in greenhouse
    Variety of potential drugs in pharmaceutical vials. — Stock Photo
    Variety of potential drugs in pharmaceutical vials.
    Close-up of examination of soil samples in agrochemical laboratory. — Stock Photo
    Close-up of examination of soil samples in agrochemical laboratory.
    Lab technician picking up samples — Stock Photo
    Lab technician picking up samples
    Man and older lady walking dog on sidewalk of suburban neighborhood. — Stock Photo
    Man and older lady walking dog on sidewalk of suburban neighborhood.
    Testing blood sample from a multi well plate during a clinical investigation. — Stock Photo
    Testing blood sample from a multi well plate during a clinical investigation.
    Boy standing by a river dipping his toe in the water, United States — Stock Photo
    Boy standing by a river dipping his toe in the water, United States
    Skillful caucasian plumber working on bathroom sink — Stock Photo
    Skillful caucasian plumber working on bathroom sink
    Female Asian scientist examining plants in laboratory. — Stock Photo
    Female Asian scientist examining plants in laboratory.
    Elementary age boy in ophthalmology glasses while eye examination in clinic. — Stock Photo
    Elementary age boy in ophthalmology glasses while eye examination in clinic.
    Pills in a Petri dish — Stock Photo
    Pills in a Petri dish
    Female patient at eye examination in ophthalmology clinic. — Stock Photo
    Female patient at eye examination in ophthalmology clinic.
    Close-up of scientist holding blood testing microtubes. — Stock Photo
    Close-up of scientist holding blood testing microtubes.
    Lab technician carrying cell-based testing kit in bioengineering laboratory. — Stock Photo
    Lab technician carrying cell-based testing kit in bioengineering laboratory.
    Test tubes and baby pacifiers on plain background. — Stock Photo
    Test tubes and baby pacifiers on plain background.
    Forensic DNA autoradiogram — Stock Photo
    Forensic DNA autoradiogram
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption. — Stock Photo
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption.
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Female hands testing blood sample — Stock Photo
    Female hands testing blood sample
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Salesman standing next to car and reading brochure outside the showroom — Stock Photo
    Salesman standing next to car and reading brochure outside the showroom
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office.
    Senior man using peak flow meter and looking in camera. — Stock Photo
    Senior man using peak flow meter and looking in camera.
    Lab chemist placing a sample slide on a microscope stage — Stock Photo
    Lab chemist placing a sample slide on a microscope stage
    Portrait of female staff standing with arms crossed in egg factory — Stock Photo
    Portrait of female staff standing with arms crossed in egg factory
    Close-up of DNA autoradiograms on white background. — Stock Photo
    Close-up of DNA autoradiograms on white background.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Blood samples tubes in polystyrene tray. — Stock Photo
    Blood samples tubes in polystyrene tray.
    Brown beans in plastic cup for agriculture research, conceptual image. — Stock Photo
    Brown beans in plastic cup for agriculture research, conceptual image.
    Water department technician using flow rate sensor — Stock Photo
    Water department technician using flow rate sensor
    Lab technician recording data from sample test — Stock Photo
    Lab technician recording data from sample test
    Hand in latex glove holding bunch of wheat. — Stock Photo
    Hand in latex glove holding bunch of wheat.
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Male adult engineer in water treatment plant — Stock Photo
    Male adult engineer in water treatment plant
    Computer programmers using virtual reality simulator glasses, touching fingers in office — Stock Photo
    Computer programmers using virtual reality simulator glasses, touching fingers in office
    Teenage girl practicing chemistry experiment in lab — Stock Photo
    Teenage girl practicing chemistry experiment in lab
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.
    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.
    Female worker using digital tablet in egg factory — Stock Photo
    Female worker using digital tablet in egg factory
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Glass slide containing human sample under light microscope for medical testing. — Stock Photo
    Glass slide containing human sample under light microscope for medical testing.
    Attentive male worker working in glass factory — Stock Photo
    Attentive male worker working in glass factory
    African american senior male doctor performing nasal swab test on african american man at home. medical testing for prevention of coronavirus outbreak concept — Stock Photo
    African american senior male doctor performing nasal swab test on african american man at home. medical testing for prevention of coronavirus outbreak concept
    Man having eye test with special equipment. — Stock Photo
    Man having eye test with special equipment.
    Technician holding digital tablet at factory interior — Stock Photo
    Technician holding digital tablet at factory interior
    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.
    Biologist hands with protective gloves holding trowel with soil above samples separated in containers. — Stock Photo
    Biologist hands with protective gloves holding trowel with soil above samples separated in containers.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Computer programmer testing virtual reality simulator glasses at computer in office — Stock Photo
    Computer programmer testing virtual reality simulator glasses at computer in office
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.