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    Male scientist using microscope, close-up. — Stock Photo
    Male scientist using microscope, close-up.
    Delighted African American female with braids smiling and using mouth mirror and probe to show coworker false teeth during work in lab — Stock Photo
    Delighted African American female with braids smiling and using mouth mirror and probe to show coworker false teeth during work in lab
    Close-up of scientist hand holding Petri dish in pathology laboratory. — Stock Photo
    Close-up of scientist hand holding Petri dish in pathology laboratory.
    Dental technician polishing teeth — Stock Photo
    Dental technician polishing teeth