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    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope. — Stock Photo
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope.
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Scientist selecting human blood sample in laboratory. — Stock Photo
    Scientist selecting human blood sample in laboratory.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Empty stool sampling kit on laboratory table, close-up. — Stock Photo
    Empty stool sampling kit on laboratory table, close-up.
    Close-up of scientist collecting specimen in greenhouse — Stock Photo
    Close-up of scientist collecting specimen in greenhouse
    Female scientist holding specimen in green house — Stock Photo
    Female scientist holding specimen in green house
    Close-up of scientist watching leaf specimen in the greenhouse — Stock Photo
    Close-up of scientist watching leaf specimen in the greenhouse
    Female scientist looking at specimen in greenhouse — Stock Photo
    Female scientist looking at specimen in greenhouse
    Close-up of scientist holding specimen of leaf in greenhouse — Stock Photo
    Close-up of scientist holding specimen of leaf in greenhouse
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    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.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    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.
    Glass slide containing human sample under light microscope for medical testing. — Stock Photo
    Glass slide containing human sample under light microscope for medical testing.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Close-up of blood sample in glass phial. — Stock Photo
    Close-up of blood sample in glass phial.
    Children examining plants outdoors — Stock Photo
    Children examining plants outdoors
    Close-up of blood sample in glass phial. — Stock Photo
    Close-up of blood sample in glass phial.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Student and teacher examining insects in jar outdoors — Stock Photo
    Student and teacher examining insects in jar outdoors
    Students and teacher examining leaf outdoors — Stock Photo
    Students and teacher examining leaf outdoors
    Scientist viewing sample on glass slide before light microscope. — Stock Photo
    Scientist viewing sample on glass slide before light microscope.
    Scientist viewing sample on glass slide under light microscope. — Stock Photo
    Scientist viewing sample on glass slide under light microscope.
    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.
    Students and teacher holding pine cone in forest — Stock Photo
    Students and teacher holding pine cone in forest
    Teacher and student examining plants outdoors — Stock Photo
    Teacher and student examining plants outdoors
    Red mineral gemstone on mirror surface. — Stock Photo
    Red mineral gemstone on mirror surface.
    Red mineral gemstone on plain background. — Stock Photo
    Red mineral gemstone on plain background.
    Red mineral crystals on gray background. — Stock Photo
    Red mineral crystals on gray background.
    Red mineral crystals on gray background. — Stock Photo
    Red mineral crystals on gray background.
    Green mineral gemstone on mirror surface. — Stock Photo
    Green mineral gemstone on mirror surface.
    Red mineral gemstones on plain background. — Stock Photo
    Red mineral gemstones on plain background.
    Blue mineral gemstone on mirror surface. — Stock Photo
    Blue mineral gemstone on mirror surface.
    Green mineral gemstone on mirror surface. — Stock Photo
    Green mineral gemstone on mirror surface.
    Red mineral crystals on gray background. — Stock Photo
    Red mineral crystals on gray background.
    Red mineral gemstone on mirror surface. — Stock Photo
    Red mineral gemstone on mirror surface.
    Blue mineral gemstone on mirror surface. — Stock Photo
    Blue mineral gemstone on mirror surface.
    Crop hands providing autopsies of fetus with lancet. — Stock Photo
    Crop hands providing autopsies of fetus with lancet.
    Crop hand in glove holding ahead of the dead fetus wet specimen. — Stock Photo
    Crop hand in glove holding ahead of the dead fetus wet specimen.
    Agar plate and specimen brush on blue background. — Stock Photo
    Agar plate and specimen brush on blue background.
    Agar plate and specimen brush on blue background. — Stock Photo
    Agar plate and specimen brush on blue background.
    Female researcher pipetting liquid in science laboratory. — Stock Photo
    Female researcher pipetting liquid in science laboratory.
    Crop hands in gloves holding wet specimen of unborn child — Stock Photo
    Crop hands in gloves holding wet specimen of unborn child
    Female researcher pipetting liquid in science laboratory. — Stock Photo
    Female researcher pipetting liquid in science laboratory.
    Crop medic's hands preparing fetus specimen with lancet. — Stock Photo
    Crop medic's hands preparing fetus specimen with lancet.
    Buccal swabs for obtaining deoxyribonucleic acid samples. — Stock Photo
    Buccal swabs for obtaining deoxyribonucleic acid samples.
    Close-up of citrine crystals on white background. — Stock Photo
    Close-up of citrine crystals on white background.