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    Syringe dripping blood sample into multiwell tray. — Stock Photo
    Syringe dripping blood sample into multiwell tray.
    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.
    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.
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Scientist pipetting samples into test tubes in laboratory. — Stock Photo
    Scientist pipetting samples into test tubes in laboratory.
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Gloved hand of laboratory assistant examining growth in petri dish, close-up. — Stock Photo
    Gloved hand of laboratory assistant examining growth in petri dish, close-up.
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Close-up of examination of soil samples in agrochemical laboratory. — Stock Photo
    Close-up of examination of soil samples in agrochemical laboratory.
    Syringe dripping blood droplet into test tubes. — Stock Photo
    Syringe dripping blood droplet into test tubes.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Female working at laptop with medical vials — Stock Photo
    Female working at laptop with medical vials
    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
    Researcher preparing samples of donated blood for analysis. — Stock Photo
    Researcher preparing samples of donated blood for analysis.
    Blood samples in microcentrifuge tube strip for genetic analysis. — Stock Photo
    Blood samples in microcentrifuge tube strip for genetic analysis.
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge. — Stock Photo
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge.
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Hand in latex glove holding test tube with ear of wheat — Stock Photo
    Hand in latex glove holding test tube with ear of wheat
    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    Patient undergoing skin prick test in allergy clinic. — Stock Photo
    Patient undergoing skin prick test in allergy clinic.
    Woman biologist in white coat pouring liquid from test tube into labelled containers with soil. — Stock Photo
    Woman biologist in white coat pouring liquid from test tube into labelled containers with soil.
    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.
    Blood samples in centrifuge tubes on white background. — Stock Photo
    Blood samples in centrifuge tubes on white background.
    Technician holding urine sample for testing in laboratory. — Stock Photo
    Technician holding urine sample for testing in laboratory.
    Preteen girl breathing into peak flow meter and looking at nurse. — Stock Photo
    Preteen girl breathing into peak flow meter and looking at nurse.
    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 pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Female researcher holding medium tray. — Stock Photo
    Female researcher holding medium tray.
    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.
    Female biologist in white coat pouring water in soil sample. — Stock Photo
    Female biologist in white coat pouring water in soil sample.
    Biologist pouring soil with spatula from sample bag into separated containers. — Stock Photo
    Biologist pouring soil with spatula from sample bag into separated containers.
    Close-up of bar-coded agar plates for biological research. — Stock Photo
    Close-up of bar-coded agar plates for biological research.
    Petri dishes and pipette, close-up. — Stock Photo
    Petri dishes and pipette, close-up.
    Female scientist using pipette for dropping liquid into eppendorf tubes. — Stock Photo
    Female scientist using pipette for dropping liquid into eppendorf tubes.
    Gloved hand holding multiwell tray containing blood samples. — Stock Photo
    Gloved hand holding multiwell tray containing blood samples.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Patient undergoing skin prick test in allergy clinic. — Stock Photo
    Patient undergoing skin prick test in allergy clinic.
    Close-up of pink liquid in test tube on table with laboratory glassware. — Stock Photo
    Close-up of pink liquid in test tube on table with laboratory glassware.
    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.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Female scientist working with test tube. — Stock Photo
    Female scientist working with test tube.
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Human Platelets, computer illustration — Stock Photo
    Human Platelets, computer illustration
    Scientist pipetting sample into micro centrifuge tubes ready for automated analysis. — Stock Photo
    Scientist pipetting sample into micro centrifuge tubes ready for automated analysis.
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Researcher using a light microscope for studying tube containing blood sample. — Stock Photo
    Researcher using a light microscope for studying tube containing blood sample.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    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 laboratory technician writing on test tube. — Stock Photo
    Close-up of laboratory technician writing on test tube.
    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.
    Scientific or medical samples on glass table — Stock Photo
    Scientific or medical samples on glass table
    Male laboratory assistant holding test tube rack. — Stock Photo
    Male laboratory assistant holding test tube rack.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Close-up of hands of scientist holding test tube. — Stock Photo
    Close-up of hands of scientist holding test tube.
    Plant seedling in soil in Petri dish in laboratory. — Stock Photo
    Plant seedling in soil in Petri dish in laboratory.