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    Close-up of sample tubes in rack. — Stock Photo
    Close-up of sample tubes in rack.
    Male laboratory assistant holding test tube rack. — Stock Photo
    Male laboratory assistant holding test tube rack.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Close-up of rack of cell cultures in tubes in laboratory. — Stock Photo
    Close-up of rack of cell cultures in tubes in laboratory.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Medical sample tubes labelled with bar codes. — Stock Photo
    Medical sample tubes labelled with bar codes.
    Laboratory technician checking invoices in blood bank — Stock Photo
    Laboratory technician checking invoices in blood bank
    Crop anonymous chemist pouring marijuana oil from pipette into sample tube during examination in laboratory — Stock Photo
    Crop anonymous chemist pouring marijuana oil from pipette into sample tube during examination in laboratory
    Close-up of pipette pipetting into microcentrifuge tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into microcentrifuge tubes in pathogenic laboratory.
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research. — Stock Photo
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Close up of pipette dropping solution into test tubes in rack in lab — Stock Photo
    Close up of pipette dropping solution into test tubes in rack in lab
    Three test tubes with various liquids in tube rack. — Stock Photo
    Three test tubes with various liquids in tube rack.
    Female scientist in clean suit with test tubes studying coronavirus — Stock Photo
    Female scientist in clean suit with test tubes studying coronavirus
    Team of scientists experimenting together in laboratory — Stock Photo
    Team of scientists experimenting together in laboratory
    Sample tube with blue liquid in pink rack. — Stock Photo
    Sample tube with blue liquid in pink rack.
    Male chemist in uniform and disposable mask looking forward at table with professional equipment and test tubes in laboratory — Stock Photo
    Male chemist in uniform and disposable mask looking forward at table with professional equipment and test tubes in laboratory
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Empty and sterile phials in red plastic box. — Stock Photo
    Empty and sterile phials in red plastic box.
    Laboratory technician checking invoices in blood bank — Stock Photo
    Laboratory technician checking invoices in blood bank
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Labelled vacutainer tubes containing blood samples, close-up. — Stock Photo
    Labelled vacutainer tubes containing blood samples, close-up.
    Labeled medical samples in rack, close-up. — Stock Photo
    Labeled medical samples in rack, close-up.
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Close up of rack of test tubes with solution in lab — Stock Photo
    Close up of rack of test tubes with solution in lab
    Close-up of empty and sterile phials in red plastic box. — Stock Photo
    Close-up of empty and sterile phials in red plastic box.
    Laboratory technician holding test tubes in blood bank — Stock Photo
    Laboratory technician holding test tubes in blood bank
    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Female scientist examining test tube in laboratory — Stock Photo
    Female scientist examining test tube in laboratory
    Close-up of laboratory technician working in blood bank — Stock Photo
    Close-up of laboratory technician working in blood bank
    Rack of food samples in test tubes. — Stock Photo
    Rack of food samples in test tubes.
    Attentive female scientist experimenting in laboratory — Stock Photo
    Attentive female scientist experimenting in laboratory
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Racks of test tubes with red lids on blue table. — Stock Photo
    Racks of test tubes with red lids on blue table.
    Test tubes rack with urine samples for analysis, studio shot. — Stock Photo
    Test tubes rack with urine samples for analysis, studio shot.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Laboratory technician holding test tubes in blood bank — Stock Photo
    Laboratory technician holding test tubes in blood bank
    Multipipette and rack of vials for genetic research on white background. — Stock Photo
    Multipipette and rack of vials for genetic research on white background.
    Close-up of female scientists using pipette in laboratory — Stock Photo
    Close-up of female scientists using pipette in laboratory
    Rack of food samples in test tubes. — Stock Photo
    Rack of food samples in test tubes.
    Group of laboratory test tubes with colored liquids. — Stock Photo
    Group of laboratory test tubes with colored liquids.
    Doctor with test tubes in hospital — Stock Photo
    Doctor with test tubes in hospital
    Female scientist in clean suit researching coronavirus vaccine — Stock Photo
    Female scientist in clean suit researching coronavirus vaccine
    Group of laboratory test tubes with colored liquids. — Stock Photo
    Group of laboratory test tubes with colored liquids.
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.