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    Scientist closing lid of vial while laboratory testing. — Stock Photo
    Scientist closing lid of vial while laboratory testing.
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Scientist pipetting samples into test tubes in laboratory. — Stock Photo
    Scientist pipetting samples into test tubes in laboratory.
    Close-up of pipetting sample into plastic micro-centrifuge tube. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube.
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Multichannel pipette pipetting into rack of tubes. — Stock Photo
    Multichannel pipette pipetting into rack of tubes.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Ampules, centrifuge tube and laboratory glassware, pharmaceutical research concept. — Stock Photo
    Ampules, centrifuge tube and laboratory glassware, pharmaceutical research concept.
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Plant biotechnology and research — Stock Photo
    Plant biotechnology and research
    Close-up of microcentrifuge tubes with biologist in background. — Stock Photo
    Close-up of microcentrifuge tubes with biologist in background.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Close-up of scientist holding blood testing microtubes. — Stock Photo
    Close-up of scientist holding blood testing microtubes.
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Female researcher pipetting liquid in laboratory. — Stock Photo
    Female researcher pipetting liquid in laboratory.
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Female researcher pipetting liquid in science laboratory. — Stock Photo
    Female researcher pipetting liquid in science laboratory.
    Blood samples for testing in microcentrifuge tubes. — Stock Photo
    Blood samples for testing in microcentrifuge tubes.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Female researcher pipetting liquid into test tube. — Stock Photo
    Female researcher pipetting liquid into test tube.
    Close-up of pipetting sample into plastic micro-centrifuge tube. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube.
    Scientist pipetting liquid into Eppendorf tubes. — Stock Photo
    Scientist pipetting liquid into Eppendorf tubes.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Still life of laboratory bench with microscope and various scientific equipment. — Stock Photo
    Still life of laboratory bench with microscope and various scientific equipment.
    Close-up view of eppendorf tubes. — Stock Photo
    Close-up view of eppendorf tubes.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Close-up of microcentrifuge tubes with various samples. — Stock Photo
    Close-up of microcentrifuge tubes with various samples.
    DNA test result on microcentrifuge tube with DNA sample in scientist hand. — Stock Photo
    DNA test result on microcentrifuge tube with DNA sample in scientist hand.
    Female scientist using pipette for dropping liquid into eppendorf tubes. — Stock Photo
    Female scientist using pipette for dropping liquid into eppendorf tubes.
    Close-up of pipetting sample into plastic micro-centrifuge tube. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube.
    Close-up of pipetting sample into plastic micro-centrifuge tube. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Blood samples in PCR tubes. — Stock Photo
    Blood samples in PCR tubes.
    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory. — Stock Photo
    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory.
    DNA test result on microcentrifuge tube with DNA sample in scientist hand. — Stock Photo
    DNA test result on microcentrifuge tube with DNA sample in scientist hand.
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    PCR tubes with orange, green and purple samples, full frame. — Stock Photo
    PCR tubes with orange, green and purple samples, full frame.
    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Close-up of pipetting into Eppendorf tubes. — Stock Photo
    Close-up of pipetting into Eppendorf tubes.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Female scientist pipetting liquid into Eppendorf tubes. — Stock Photo
    Female scientist pipetting liquid into Eppendorf tubes.
    Close-up of pipetting sample into plastic micro-centrifuge tube rack. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube rack.
    PCR tubes with orange and purple samples on black background. — Stock Photo
    PCR tubes with orange and purple samples on black background.
    Close-up of pipetting liquid into Eppendorf tubes. — Stock Photo
    Close-up of pipetting liquid into Eppendorf tubes.
    Close-up of pipetting liquid into Eppendorf tubes. — Stock Photo
    Close-up of pipetting liquid into Eppendorf tubes.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Klebsiella pneumoniae bacteria in respiratory tract, computer illustration. — Stock Photo
    Klebsiella pneumoniae bacteria in respiratory tract, computer illustration.
    Empty PCR tubes on black background. — Stock Photo
    Empty PCR tubes on black background.
    Close-up of sample on red liquid in centrifuge tube. — Stock Photo
    Close-up of sample on red liquid in centrifuge tube.