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    Blood samples for testing in microcentrifuge tubes. — Stock Photo
    Blood samples for testing in microcentrifuge tubes.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Medical sample tube labelled with bar code. — Stock Photo
    Medical sample tube labelled with bar code.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Standardized volume pipettes with bulbs, close-up. — Stock Photo
    Standardized volume pipettes with bulbs, close-up.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Variety of potential drugs in pharmaceutical vials and test tubes. — Stock Photo
    Variety of potential drugs in pharmaceutical vials and test tubes.
    Vial of potential drug in petri dish on DNA autoradiogram. — Stock Photo
    Vial of potential drug in petri dish on DNA autoradiogram.
    Close-up of cell culture plates on white background. — Stock Photo
    Close-up of cell culture plates on white background.
    Laboratory glassware with red liquid. — Stock Photo
    Laboratory glassware with red liquid.
    DNA swab on genetic test results. — Stock Photo
    DNA swab on genetic test results.
    Variety of potential drugs in pharmaceutical vials. — Stock Photo
    Variety of potential drugs in pharmaceutical vials.
    Laboratory glassware with transparent liquid, close-up. — Stock Photo
    Laboratory glassware with transparent liquid, close-up.
    Liquids of different colors in sample vials in laboratory. — Stock Photo
    Liquids of different colors in sample vials in laboratory.
    Liquids of different colors in sample vials in laboratory. — Stock Photo
    Liquids of different colors in sample vials in laboratory.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Close-up of cell culture plates on white background. — Stock Photo
    Close-up of cell culture plates on white background.
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    Standardized volume pipettes with bulbs, close-up. — Stock Photo
    Standardized volume pipettes with bulbs, close-up.
    Empty laboratory glassware on table. — Stock Photo
    Empty laboratory glassware on table.
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    Medical pills and capsules on white background. — Stock Photo
    Medical pills and capsules on white background.
    Test tubes and baby pacifiers on plain background. — Stock Photo
    Test tubes and baby pacifiers on plain background.
    Variety of potential drugs in pharmaceutical vials and test tubes. — Stock Photo
    Variety of potential drugs in pharmaceutical vials and test tubes.
    Variety of drugs on DNA autoradiogram, close-up. — Stock Photo
    Variety of drugs on DNA autoradiogram, close-up.
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    DNA swab on genetic test results. — Stock Photo
    DNA swab on genetic test results.
    DNA autoradiogram in petri dish in laboratory, close-up. — Stock Photo
    DNA autoradiogram in petri dish in laboratory, close-up.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    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 view of medical sample with genetic test results. — Stock Photo
    Close-up view of medical sample with genetic test results.
    Laboratory glassware standing on table. — Stock Photo
    Laboratory glassware standing on table.
    Laboratory sample tubes in rack. — Stock Photo
    Laboratory sample tubes in rack.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Medical syringes with hypodermic needles. — Stock Photo
    Medical syringes with hypodermic needles.
    Laboratory glassware standing on table. — Stock Photo
    Laboratory glassware standing on table.
    Laboratory storage box for eppendorf tubes. — Stock Photo
    Laboratory storage box for eppendorf tubes.
    Ammonite fossil on black background. — Stock Photo
    Ammonite fossil on black background.
    Medical samples in centrifuge. — Stock Photo
    Medical samples in centrifuge.
    Close-up view of laboratory glassware. — Stock Photo
    Close-up view of laboratory glassware.
    Close-up view of plants in test tubes. — Stock Photo
    Close-up view of plants in test tubes.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Spilt blood sample on white background. — Stock Photo
    Spilt blood sample on white background.
    Close-up view of needle inserted into vaccine vial. — Stock Photo
    Close-up view of needle inserted into vaccine vial.
    Needle inserted into vaccine vial. — Stock Photo
    Needle inserted into vaccine vial.
    Close-up view of medical syringes. — Stock Photo
    Close-up view of medical syringes.
    Sample tube with blue liquid in pink rack. — Stock Photo
    Sample tube with blue liquid in pink rack.
    Laboratory sample tubes in rack. — Stock Photo
    Laboratory sample tubes in rack.
    Medical syringes with hypodermic needles. — Stock Photo
    Medical syringes with hypodermic needles.
    Close-up view of laboratory glassware. — Stock Photo
    Close-up view of laboratory glassware.
    Close-up view of plants in test tubes. — Stock Photo
    Close-up view of plants in test tubes.
    Close-up view of medical syringes with blood sample. — Stock Photo
    Close-up view of medical syringes with blood sample.
    Laboratory storage box for eppendorf tubes. — Stock Photo
    Laboratory storage box for eppendorf tubes.