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    Petri dishes with blood samples on plain background. — Stock Photo
    Petri dishes with blood samples on plain background.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Close-up view of researcher hand taking blood sample from rack of medical samples. — Stock Photo
    Close-up view of researcher hand taking blood sample from rack of medical samples.
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Blood clot or thrombus — Stock Photo
    Blood clot or thrombus
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    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.
    Illustration of clot of human blood cells. — Stock Photo
    Illustration of clot of human blood cells.
    Illustration of red blood cells affected by sickle cell anaemia with crescent-shaped cells. — Stock Photo
    Illustration of red blood cells affected by sickle cell anaemia with crescent-shaped cells.
    Molecules of insulin circulating in the blood stream — Stock Photo
    Molecules of insulin circulating in the blood stream
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital — Stock Photo
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital
    Illustration of human blood cells on black background. — Stock Photo
    Illustration of human blood cells on black background.
    Narrowed blood vessel, computer illustration. — Stock Photo
    Narrowed blood vessel, computer illustration.
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Close-up of human urine, blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human urine, blood and various medical samples in test tubes while screening in medical lab.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Red blood cells — Stock Photo
    Red blood cells
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Close-up of containers for blood group test. — Stock Photo
    Close-up of containers for blood group test.
    Monocyte white blood cell, digital illustration. — Stock Photo
    Monocyte white blood cell, digital illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Healthcare worker sorting bags of blood — Stock Photo
    Healthcare worker sorting bags of blood
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Red blood cells, computer illustration — Stock Photo
    Red blood cells, computer illustration
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Hypodermic needle and blood, computer illustration — Stock Photo
    Hypodermic needle and blood, computer illustration
    White blood cells — Stock Photo
    White blood cells
    Female donor with patch on hand sitting in medical chair after blood transfusion procedure — Stock Photo
    Female donor with patch on hand sitting in medical chair after blood transfusion procedure
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Red blood cells on black background, digital illustration. — Stock Photo
    Red blood cells on black background, digital illustration.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Stacked Petri dishes with blood samples. — Stock Photo
    Stacked Petri dishes with blood samples.
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Labelled vacutainer tubes containing blood samples, close-up. — Stock Photo
    Labelled vacutainer tubes containing blood samples, close-up.
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center — Stock Photo
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Tube with blood sample on metal tray in laboratory, close-up. — Stock Photo
    Tube with blood sample on metal tray in laboratory, close-up.
    Syringe with spilled blood on white background. — Stock Photo
    Syringe with spilled blood on white background.
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery