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    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Different chemicals in lab — Stock Photo
    Different chemicals in lab
    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
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Close-up of sample tubes in rack. — Stock Photo
    Close-up of sample tubes in rack.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Three test tubes with various liquids in tube rack. — Stock Photo
    Three test tubes with various liquids in tube rack.
    Close-up of female scientist using pipette in laboratory — Stock Photo
    Close-up of female scientist using pipette in laboratory
    Biological samples in test tubes and Petri dishes on laboratory table. — Stock Photo
    Biological samples in test tubes and Petri dishes on laboratory table.
    Empty and sterile phials in red plastic box. — Stock Photo
    Empty and sterile phials in red plastic box.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Labelled test tubes with blood samples. — Stock Photo
    Labelled test tubes with blood samples.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom
    Group of laboratory test tubes with colored liquids. — Stock Photo
    Group of laboratory test tubes with colored liquids.
    Male laboratory assistant holding test tube rack. — Stock Photo
    Male laboratory assistant holding test 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
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Doctor with test tubes in hospital — Stock Photo
    Doctor with test tubes in hospital
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Rack of food samples in test tubes. — Stock Photo
    Rack of food samples in test tubes.
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background — Stock Photo
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Scientist selecting human blood sample in laboratory. — Stock Photo
    Scientist selecting human blood sample in laboratory.
    Plastic test tubes in rack on white background. — Stock Photo
    Plastic test tubes in rack on white background.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Close-up of female scientist using pipette in laboratory — Stock Photo
    Close-up of female scientist using pipette in laboratory
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Racks of test tubes with red lids on blue table. — Stock Photo
    Racks of test tubes with red lids on blue table.
    Plastic test tubes with green lids in rack. — Stock Photo
    Plastic test tubes with green lids in rack.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Medical sample tubes labelled with bar codes. — Stock Photo
    Medical sample tubes labelled with bar codes.
    Laboratory technician holding test tubes in blood bank — Stock Photo
    Laboratory technician holding test tubes in blood bank
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic 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.
    Female college students conducting scientific experiment in science laboratory classroom — Stock Photo
    Female college students conducting scientific experiment in science laboratory classroom
    Mid section of male scientist experimenting in laboratory — Stock Photo
    Mid section of male scientist experimenting in laboratory
    Students conducting scientific experiment in laboratory classroom — Stock Photo
    Students conducting scientific experiment in laboratory classroom
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Robot arm with test tube. — Stock Photo
    Robot arm with test tube.
    Female scientist in clean suit examining test tubes — Stock Photo
    Female scientist in clean suit examining test tubes
    Test tubes with red liquid in rack. — Stock Photo
    Test tubes with red liquid in rack.
    Empty and sterile phials in red plastic box. — Stock Photo
    Empty and sterile phials in red plastic box.
    Empty test tubes in red rack. — Stock Photo
    Empty test tubes in red rack.