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    Close-up of multipipette sampling liquid into tube rack in laboratory. — Stock Photo
    Close-up of multipipette sampling liquid into tube rack in laboratory.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Close-up of syringe full of blood in hands of male doctor. — Stock Photo
    Close-up of syringe full of blood in hands of male doctor.
    Female researcher preparing multi-well sample tray of blood for analysis. — Stock Photo
    Female researcher preparing multi-well sample tray of blood for analysis.
    Close-up of multiple test stick being placed into urine sample tube by female doctor. — Stock Photo
    Close-up of multiple test stick being placed into urine sample tube by female doctor.
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil. — Stock Photo
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Blood cells, light micrograph. — Stock Photo
    Blood cells, light micrograph.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Biotechnology engineer inspecting cell culture flask. — Stock Photo
    Biotechnology engineer inspecting cell culture flask.
    Female doctor holding tube with blood sample. — Stock Photo
    Female doctor holding tube with blood sample.
    Liquid sample in quartz cuvette container and beaker. — Stock Photo
    Liquid sample in quartz cuvette container and beaker.
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample. — Stock Photo
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample.
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Bacterial colonies on agar plate. — Stock Photo
    Bacterial colonies on agar plate.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Micropipette pipetting blood sample into Petri dish. — Stock Photo
    Micropipette pipetting blood sample into Petri dish.
    Tube with blood sample on metal tray in laboratory. — Stock Photo
    Tube with blood sample on metal tray in laboratory.
    Female scientist in white coat taking notes in soil testing laboratory. — Stock Photo
    Female scientist in white coat taking notes in soil testing laboratory.
    Pipetting samples into microcentrifuge tubes — Stock Photo
    Pipetting samples into microcentrifuge tubes
    Close-up of hand in glove using equipment in laboratory. — Stock Photo
    Close-up of hand in glove using equipment in laboratory.
    Close-up of pipetting sample into multiwell plate for analysis in laboratory. — Stock Photo
    Close-up of pipetting sample into multiwell plate for analysis in laboratory.
    Close-up of biologist pouring water into containers with soil samples. — Stock Photo
    Close-up of biologist pouring water into containers with soil samples.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Close-up of empty multiwell sample tray. — Stock Photo
    Close-up of empty multiwell sample tray.
    Robot arm with test tube. — Stock Photo
    Robot arm with test tube.
    Blood cells, light micrograph. — Stock Photo
    Blood cells, light micrograph.
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand. — Stock Photo
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand.
    Syringe dripping blood sample into multiwell tray. — Stock Photo
    Syringe dripping blood sample into multiwell tray.
    Row of transparent flasks with pink liquid reflected in glass table in biological laboratory on daytime — Stock Photo
    Row of transparent flasks with pink liquid reflected in glass table in biological laboratory on daytime
    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.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Doctor taking blood sample from patient arm. — Stock Photo
    Doctor taking blood sample from patient arm.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Close-up of pipetting sample into multiwell plate for analysis in laboratory. — Stock Photo
    Close-up of pipetting sample into multiwell plate for analysis in laboratory.
    Female working at laptop with medical vials — Stock Photo
    Female working at laptop with medical vials
    Plastic test tubes in rack on white background. — Stock Photo
    Plastic test tubes in rack on white background.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Biology laboratory scientist hands working with cell culture in flask. — Stock Photo
    Biology laboratory scientist hands working with cell culture in flask.
    Plastic test tubes with green lids in rack. — Stock Photo
    Plastic test tubes with green lids in rack.
    Female scientific researcher working in laboratory and pipetting into test tube. — Stock Photo
    Female scientific researcher working in laboratory and pipetting into test tube.
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Sample tubes in container with ice in laboratory. — Stock Photo
    Sample tubes in container with ice in laboratory.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Close-up of pipetting sample into plastic micro-centrifuge tube rack. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube rack.
    Female biologist in white coat pouring water into test tube with dissolved samples of soil in laboratory. — Stock Photo
    Female biologist in white coat pouring water into test tube with dissolved samples of soil in laboratory.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Pipette adding sample to petri dish during experiment in laboratory. — Stock Photo
    Pipette adding sample to petri dish during experiment in laboratory.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Scientists preparing multiwell plate with blood samples for testing and analysis. — Stock Photo
    Scientists preparing multiwell plate with blood samples for testing and analysis.
    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.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Scientist hand holding blood drop sample on microscope slide, studio shot. — Stock Photo
    Scientist hand holding blood drop sample on microscope slide, studio shot.
    Close-up of pipetting sample into plastic micro-centrifuge tube rack. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube rack.