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    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Medical samples — Stock Photo
    Medical samples
    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.
    Mature woman testing blood pressure with machine. — Stock Photo
    Mature woman testing blood pressure with machine.
    Woman's hand holding a positive pregnancy test — Stock Photo
    Woman's hand holding a positive pregnancy test
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Senior woman doing a DNA test at home. — Stock Photo
    Senior woman doing a DNA test at home.
    Motor testing multimeter and mobile phone at floor in garage — Stock Photo
    Motor testing multimeter and mobile phone at floor in garage
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office.
    Man testing VR glasses on dark background — Stock Photo
    Man testing VR glasses on dark background
    Server room technician using computer — Stock Photo
    Server room technician using computer
    Mother watching daughters sticking toes in water on lakeside dock — Stock Photo
    Mother watching daughters sticking toes in water on lakeside dock
    Lab technician opening sterilization tank — Stock Photo
    Lab technician opening sterilization tank
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    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
    Stool culture, colorful image — Stock Photo
    Stool culture, colorful image
    Teenage girl performing chemistry experiment in lab — Stock Photo
    Teenage girl performing chemistry experiment in lab
    Scientist viewing results of genetic test on digital tablet. — Stock Photo
    Scientist viewing results of genetic test on digital tablet.
    Attentive male worker working in glass factory — Stock Photo
    Attentive male worker working in glass factory
    Man and older lady walking dog on sidewalk of suburban neighborhood. — Stock Photo
    Man and older lady walking dog on sidewalk of suburban neighborhood.
    DNA home test kit. — Stock Photo
    DNA home test kit.
    Portrait of technician holding digital tablet at meat factory — Stock Photo
    Portrait of technician holding digital tablet at meat factory
    Boy coloring shapes with colorful pens for developmental psychology test in female doctor office. — Stock Photo
    Boy coloring shapes with colorful pens for developmental psychology test in female doctor office.
    Close up mid section view of man working in a microbrewery, holding malt in hand over a bag. — Stock Photo
    Close up mid section view of man working in a microbrewery, holding malt in hand over a bag.
    Female worker using digital tablet in egg factory — Stock Photo
    Female worker using digital tablet in egg factory
    Senior man using peak flow meter, close-up. — Stock Photo
    Senior man using peak flow meter, close-up.
    Engineer testing solar panels at sunny power plant — Stock Photo
    Engineer testing solar panels at sunny power plant
    Skillful caucasian plumber working on bathroom sink — Stock Photo
    Skillful caucasian plumber working on bathroom sink
    Caucasian man wearing high visibility vest, working in a microbrewery, checking dark glass bottles of beer on a conveyor belt. — Stock Photo
    Caucasian man wearing high visibility vest, working in a microbrewery, checking dark glass bottles of beer on a conveyor belt.
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.
    Water department technician opening fire hydrant to flush water mains — Stock Photo
    Water department technician opening fire hydrant to flush water mains
    Man and older lady walking dog on sidewalk of suburban neighborhood. — Stock Photo
    Man and older lady walking dog on sidewalk of suburban neighborhood.