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    Illustration of human blood cells on black background. — Stock Photo
    Illustration of human blood cells on black background.
    Tube with blood sample on metal tray in laboratory. — Stock Photo
    Tube with blood sample on metal tray in laboratory.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Illustration of low density cholesterol lipoprotein in bloodstream. — Stock Photo
    Illustration of low density cholesterol lipoprotein in bloodstream.
    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.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    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.
    Medical samples — Stock Photo
    Medical samples
    Red blood cells — Stock Photo
    Red blood cells
    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
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration. — Stock Photo
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration.
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Red blood cells in a blood vessel — Stock Photo
    Red blood cells in a blood vessel
    Donor blood being separated into component parts in bag. — Stock Photo
    Donor blood being separated into component parts in bag.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration. — Stock Photo
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration.
    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.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Red blood cells — Stock Photo
    Red blood cells
    Human white blood cell — Stock Photo
    Human white blood cell
    Red blood cells — Stock Photo
    Red blood cells
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Centrifuging blood samples with barcodes, digital illustration. — Stock Photo
    Centrifuging blood samples with barcodes, digital illustration.
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Female researcher preparing multi-well sample tray of blood for analysis. — Stock Photo
    Female researcher preparing multi-well sample tray of blood for analysis.
    Blood clot or thrombus — Stock Photo
    Blood clot or thrombus
    Narrowed artery causing atherosclerosis — Stock Photo
    Narrowed artery causing atherosclerosis
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Healthcare worker sorting bags of blood — Stock Photo
    Healthcare worker sorting bags of blood
    Microcentrifuge sample tubes in styrofoam rack on blue background. — Stock Photo
    Microcentrifuge sample tubes in styrofoam rack on blue background.
    Hand holding a multiwell tray containing blood samples. — Stock Photo
    Hand holding a multiwell tray containing blood samples.
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Scientist selecting human blood sample in laboratory. — Stock Photo
    Scientist selecting human blood sample in laboratory.
    Red blood cells — Stock Photo
    Red blood cells
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Male doctor drawing female patient blood for PRP cosmetics treatment. — Stock Photo
    Male doctor drawing female patient blood for PRP cosmetics treatment.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Person giving blood — Stock Photo
    Person giving blood
    Petri dishes with blood samples on plain background. — Stock Photo
    Petri dishes with blood samples on plain background.
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Researcher preparing bags of donated blood for component separation. — Stock Photo
    Researcher preparing bags of donated blood for component separation.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    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.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Medical samples — Stock Photo
    Medical samples
    Donor blood being separated into component parts in bag. — Stock Photo
    Donor blood being separated into component parts in bag.
    Crenated red blood cells — Stock Photo
    Crenated red blood cells