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    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Lymphocyte cell structure and shape — Stock Photo
    Lymphocyte cell structure and shape
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    White blood cell and proteins, digital illustration. — Stock Photo
    White blood cell and proteins, digital illustration.
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    White blood cell and proteins, digital illustration. — Stock Photo
    White blood cell and proteins, digital illustration.
    Erythrocyte red blood cell, digital illustration. — Stock Photo
    Erythrocyte red blood cell, digital illustration.
    Activated platelets in blood vessel — Stock Photo
    Activated platelets in blood vessel
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Blood vessel with blood cells — Stock Photo
    Blood vessel with blood cells
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Appendix showing appendicitis — Stock Photo
    Appendix showing appendicitis
    Sickle cell anemia — Stock Photo
    Sickle cell anemia
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Magnified digital illustration of macrophage cell. — Stock Photo
    Magnified digital illustration of macrophage cell.
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    White blood cell, digital illustration. — Stock Photo
    White blood cell, digital illustration.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Normal human arteries, — Stock Photo
    Normal human arteries,
    Lymphocyte white blood cell, digital illustration. — Stock Photo
    Lymphocyte white blood cell, digital illustration.
    Normal White blood cell — Stock Photo
    Normal White blood cell
    Blood stream and artery walls — Stock Photo
    Blood stream and artery walls
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Artwork of plasma cells — Stock Photo
    Artwork of plasma cells
    Red blood cells — Stock Photo
    Red blood cells
    Activated platelets in blood vessel — Stock Photo
    Activated platelets in blood vessel
    Illustration of leucocyte cell surrounded by antibodies on white background. — Stock Photo
    Illustration of leucocyte cell surrounded by antibodies on white background.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Human white blood cell — Stock Photo
    Human white blood cell
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Red blood cells — Stock Photo
    Red blood cells
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    Red blood cells in a blood vessel — Stock Photo
    Red blood cells in a blood vessel
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil blood cell. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil blood cell.
    Human red blood cells — Stock Photo
    Human red blood cells
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Dendritic cell on plain background, digital illustration. — Stock Photo
    Dendritic cell on plain background, digital illustration.
    White blood cell and proteins, digital illustration. — Stock Photo
    White blood cell and proteins, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    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.
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Macrophage foam cell with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cell with lipid droplets, digital illustration.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph. — Stock Photo
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph.
    3d digital illustration of narrowed blood vessel. — Stock Photo
    3d digital illustration of narrowed blood vessel.
    Red blood cells — Stock Photo
    Red blood cells
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.