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    Micropipette pipetting blood sample into Petri dishes. — Stock Photo
    Micropipette pipetting blood sample into Petri dishes.
    Female biology student using light microscope in laboratory. — Stock Photo
    Female biology student using light microscope in laboratory.
    Blood sampling vacutainer tubes in rack, close-up. — Stock Photo
    Blood sampling vacutainer tubes in rack, close-up.
    Agar plate and specimen brush on blue background. — Stock Photo
    Agar plate and specimen brush on blue background.
    Scientist hand holding blood drop sample on microscope slide, studio shot. — Stock Photo
    Scientist hand holding blood drop sample on microscope slide, studio shot.
    Female doctor testing urine with stick, close-up. — Stock Photo
    Female doctor testing urine with stick, close-up.
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Tissue culture labelled wells with pink fluid and gel nourishes. — Stock Photo
    Tissue culture labelled wells with pink fluid and gel nourishes.
    Close-up of person hand holding microscope slide with red dot. — Stock Photo
    Close-up of person hand holding microscope slide with red dot.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Plastic test tubes in rack on white background. — Stock Photo
    Plastic test tubes in rack on white background.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Scientist hand holding blood drop sample on microscope slide, studio shot. — Stock Photo
    Scientist hand holding blood drop sample on microscope slide, studio shot.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Plastic test tubes in rack on white background. — Stock Photo
    Plastic test tubes in rack on white background.
    Crop hands in gloves holding wet specimen of unborn child — Stock Photo
    Crop hands in gloves holding wet specimen of unborn child
    Researcher loading sample of DNA into agarose gel for separation by electrophoresis. — Stock Photo
    Researcher loading sample of DNA into agarose gel for separation by electrophoresis.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Scientist gloved hand holding gene chip. — Stock Photo
    Scientist gloved hand holding gene chip.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Crop medic's hands preparing fetus specimen with lancet. — Stock Photo
    Crop medic's hands preparing fetus specimen with lancet.
    Sample tubes in container with ice in laboratory. — Stock Photo
    Sample tubes in container with ice in laboratory.
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Samples in tubes stored in container with ice. — Stock Photo
    Samples in tubes stored in container with ice.
    Multichannel pipette pipetting into rack of tubes. — Stock Photo
    Multichannel pipette pipetting into rack of tubes.
    Micropipette pipetting blood sample into Petri dish. — Stock Photo
    Micropipette pipetting blood sample into Petri dish.
    Micropipette pipetting blood sample into Petri dish. — Stock Photo
    Micropipette pipetting blood sample into Petri dish.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Close-up of scientist hand scanning tube with biological sample. — Stock Photo
    Close-up of scientist hand scanning tube with biological sample.
    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.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Medical sample tubes labelled with bar codes. — Stock Photo
    Medical sample tubes labelled with bar codes.
    Empty sample bottles with metal lids in a row on table. — Stock Photo
    Empty sample bottles with metal lids in a row on table.
    Close-up of scientist fingers holding microcentrifuge tube with blue liquid. — Stock Photo
    Close-up of scientist fingers holding microcentrifuge tube with blue liquid.
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Tube with blood sample on metal tray in laboratory, close-up. — Stock Photo
    Tube with blood sample on metal tray in laboratory, close-up.
    Close-up of sample on red liquid in centrifuge tube. — Stock Photo
    Close-up of sample on red liquid in centrifuge tube.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Syringe dripping blood sample into multiwell tray. — Stock Photo
    Syringe dripping blood sample into multiwell tray.
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Close-up of rack of cell cultures in bottles in laboratory. — Stock Photo
    Close-up of rack of cell cultures in bottles in laboratory.
    Close-up of nurse making blood glucose test to senior woman. — Stock Photo
    Close-up of nurse making blood glucose test to senior woman.
    Tube with blood sample on metal tray in laboratory, close-up. — Stock Photo
    Tube with blood sample on metal tray in laboratory, close-up.
    Tube with blood sample on metal tray in laboratory, close-up. — Stock Photo
    Tube with blood sample on metal tray in laboratory, close-up.
    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.
    Medical sample tube labelled with bar code. — Stock Photo
    Medical sample tube labelled with bar code.
    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.
    Close-up of sample on red liquid in centrifuge tube. — Stock Photo
    Close-up of sample on red liquid in centrifuge tube.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.