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    Optician testing senior man eyesight. — Stock Photo
    Optician testing senior man eyesight.
    Asian girl with mother having eye test in clinic. — Stock Photo
    Asian girl with mother having eye test in clinic.
    A nurse is in protective gear against covid-19 — Stock Photo
    A nurse is in protective gear against covid-19
    Side view of male worker working in glass factory — Stock Photo
    Side view of male worker working in glass factory
    Black woman in optometry cabinet during study of the eyesight — Stock Photo
    Black woman in optometry cabinet during study of the eyesight
    Bacterial contamination tests — Stock Photo
    Bacterial contamination tests
    Empty bed in hospital room — Stock Photo
    Empty bed in hospital room
    Side view of male worker working in glass factory — Stock Photo
    Side view of male worker working in glass factory
    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.
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Optician using slit lamp for eye examination preteen girl. — Stock Photo
    Optician using slit lamp for eye examination preteen girl.
    Boy having a hearing test in an audiologist's office. — Stock Photo
    Boy having a hearing test in an audiologist's office.
    Female worker examining glass product in glass factory — Stock Photo
    Female worker examining glass product in glass factory
    Portrait of technician holding digital tablet at meat factory — Stock Photo
    Portrait of technician holding digital tablet at meat factory
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Close-up view of tubes with blood samples. — Stock Photo
    Close-up view of tubes with blood samples.
    Engineers in clean suits using machinery in fiber optics research and testing lab — Stock Photo
    Engineers in clean suits using machinery in fiber optics research and testing lab
    Technicians interacting with each other at factory — Stock Photo
    Technicians interacting with each other at factory