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    Centrifuging blood samples in barcoded test tubes, digital illustration. — Stock Photo
    Centrifuging blood samples in barcoded test tubes, digital illustration.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Blood samples in PCR tubes. — Stock Photo
    Blood samples in PCR tubes.
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Medical samples — Stock Photo
    Medical samples
    Researcher using a light microscope for studying tube containing blood sample. — Stock Photo
    Researcher using a light microscope for studying tube containing blood sample.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Blood samples in microcentrifuge tube strip for genetic analysis. — Stock Photo
    Blood samples in microcentrifuge tube strip for genetic analysis.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Blood collection kit — Stock Photo
    Blood collection kit
    Forensic scientist taking swab from blood-stained shirt as forensic evidence. — Stock Photo
    Forensic scientist taking swab from blood-stained shirt as forensic evidence.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Blood samples with DNA molecule in centrifuge, genetic research conceptual digital illustration. — Stock Photo
    Blood samples with DNA molecule in centrifuge, genetic research conceptual digital illustration.
    Blood samples in microcentrifuge tube strip for genetic analysis. — Stock Photo
    Blood samples in microcentrifuge tube strip for genetic analysis.
    3d illustration of cross-section of human eye with explanations and inscription. — Stock Photo
    3d illustration of cross-section of human eye with explanations and inscription.
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Forensic scientist at scene of crime collecting DNA sample from knife as forensic evidence. — Stock Photo
    Forensic scientist at scene of crime collecting DNA sample from knife as forensic evidence.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    3d illustration of cancer cells attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cells attacked and killed by lymphocytes.
    Hand of technician holding hepatitis sample for testing in laboratory. — Stock Photo
    Hand of technician holding hepatitis sample for testing in laboratory.
    Close-up of tube and syringe in hematology laboratory with scientist in background. — Stock Photo
    Close-up of tube and syringe in hematology laboratory with scientist in background.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    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.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Close-up of pipetting blood into sample pot of clear liquid. — Stock Photo
    Close-up of pipetting blood into sample pot of clear liquid.
    Close-up of micropipette pipetting blood sample into petri dish. — Stock Photo
    Close-up of micropipette pipetting blood sample into petri dish.
    Forensic evidence collection with knife for DNA forensic test. — Stock Photo
    Forensic evidence collection with knife for DNA forensic test.
    Close-up of microcentrifuge tubes with blood samples. — Stock Photo
    Close-up of microcentrifuge tubes with blood samples.
    Close-up of tube and syringe in hematology laboratory with scientist in background. — Stock Photo
    Close-up of tube and syringe in hematology laboratory with scientist in background.
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic. — Stock Photo
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic.
    Racks of samples in test tubes and Petri dishes on laboratory table. — Stock Photo
    Racks of samples in test tubes and Petri dishes on laboratory table.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    3d illustration of cross-section of human eye in side view and frontal view. — Stock Photo
    3d illustration of cross-section of human eye in side view and frontal view.
    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 hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    3d illustration of a cross-section of the human eye in a side view. — Stock Photo
    3d illustration of a cross-section of the human eye in a side view.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    B-lymphocyte cells, computer illustration — Stock Photo
    B-lymphocyte cells, computer illustration
    3d illustration of leukocyte cells secreting allergen antibodies while allergy. — Stock Photo
    3d illustration of leukocyte cells secreting allergen antibodies while allergy.
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.