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    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory. — Stock Photo
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory.
    Micropipette pipetting blood sample into Petri dish. — Stock Photo
    Micropipette pipetting blood sample into Petri dish.
    Close-up of pipetting sample into plastic micro-centrifuge tube rack. — Stock Photo
    Close-up of pipetting sample into plastic micro-centrifuge tube rack.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Tube with blood sample on metal tray in laboratory. — Stock Photo
    Tube with blood sample on metal tray in laboratory.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Close-up of doctor holding prepared antibodies syringe. — Stock Photo
    Close-up of doctor holding prepared antibodies syringe.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    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.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Scientist hand holding blood drop sample on microscope slide, studio shot. — Stock Photo
    Scientist hand holding blood drop sample on microscope slide, studio shot.
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    Still life of microscope on laboratory bench. — Stock Photo
    Still life of microscope on laboratory bench.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Agar plate and specimen brush on blue background. — Stock Photo
    Agar plate and specimen brush on blue background.
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Hands of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Hands of scientist in laboratory mixing samples of soil with reagent.
    Blood sample in tube on blue background. — Stock Photo
    Blood sample in tube on blue background.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Laboratory sample tubes in rack. — Stock Photo
    Laboratory sample tubes in rack.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Still life of laboratory bench with microscope and various scientific equipment. — Stock Photo
    Still life of laboratory bench with microscope and various scientific equipment.
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    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.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Close-up of lab-on-a-chip integrated circuit device on black background. — Stock Photo
    Close-up of lab-on-a-chip integrated circuit device on black background.
    Close-up of trowel with soil above samples separated in containers. — Stock Photo
    Close-up of trowel with soil above samples separated in containers.
    Scientist working in laboratory and placing microscope slide on stage. — Stock Photo
    Scientist working in laboratory and placing microscope slide on stage.
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Close-up of laboratory technician holding tube with blood sample in gloved hand. — Stock Photo
    Close-up of laboratory technician holding tube with blood sample in gloved hand.
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter. — Stock Photo
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter.
    Laboratory assistant holding test tube, close-up. — Stock Photo
    Laboratory assistant holding test tube, close-up.
    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.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Female biology student using light microscope in laboratory. — Stock Photo
    Female biology student using light microscope in laboratory.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    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.
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Female laboratory assistant holding chemical flask. — Stock Photo
    Female laboratory assistant holding chemical flask.
    Petri dishes on laboratory table, close-up. — Stock Photo
    Petri dishes on laboratory table, close-up.
    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.
    Test tube with red lid on blue background. — Stock Photo
    Test tube with red lid on blue background.
    Close-up of hands in gloves holding microscope slide. — Stock Photo
    Close-up of hands in gloves holding microscope slide.
    Still life of microscope on laboratory bench. — Stock Photo
    Still life of microscope on laboratory bench.