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    Illustration of visible pancreas and organs in human body silhouette. — Stock Photo
    Illustration of visible pancreas and organs in human body silhouette.
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Digital illustration of nit egg of human head louse attached to human hair. — Stock Photo
    Digital illustration of nit egg of human head louse attached to human hair.
    Tick biting skin — Stock Photo
    Tick biting skin
    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
    Ewe and a newborn lamb — Stock Photo
    Ewe and a newborn lamb
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Veggie bowl with lentils, salad leaves and pumpkin — Stock Photo
    Veggie bowl with lentils, salad leaves and pumpkin
    Medical equipment on metal tray. — Stock Photo
    Medical equipment on metal tray.
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Crop unrecognizable plus size female athlete with bottle of aqua watching heart rate on wearable tracker during workout on urban stairs — Stock Photo
    Crop unrecognizable plus size female athlete with bottle of aqua watching heart rate on wearable tracker during workout on urban stairs
    Human heart with disease, computer illustration. — Stock Photo
    Human heart with disease, computer illustration.
    T-lymphocytes attacking a cancer cell — Stock Photo
    T-lymphocytes attacking a cancer cell
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    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.
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Digital illustration of abnormal white blood cells B-lymphocytes while hairy cell leukaemia. — Stock Photo
    Digital illustration of abnormal white blood cells B-lymphocytes while hairy cell leukaemia.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Human brain with network of blood vessels — Stock Photo
    Human brain with network of blood vessels
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Toxoplasma gondii in blood, digital illustration. — Stock Photo
    Toxoplasma gondii in blood, digital illustration.
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Medical illustration of head arteries, veins and lymphatic system — Stock Photo
    Medical illustration of head arteries, veins and lymphatic system
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    Overhead view of young boy having a snack with dog sitting underneath the table — Stock Photo
    Overhead view of young boy having a snack with dog sitting underneath the table
    Male back anatomy and skeletal system, computer illustration. — Stock Photo
    Male back anatomy and skeletal system, computer illustration.
    Anatomy of human hand back side — Stock Photo
    Anatomy of human hand back side
    Hand squeezing blood orange juice — Stock Photo
    Hand squeezing blood orange juice
    Labelled vacutainer tubes containing blood samples, close-up. — Stock Photo
    Labelled vacutainer tubes containing blood samples, close-up.
    3D rendering of human circulatory system on black background — Stock Photo
    3D rendering of human circulatory system on black background
    Red sea water of Hormuz Island — Stock Photo
    Red sea water of Hormuz Island
    Close-up of unconscious girl fallen on ground after accident — Stock Photo
    Close-up of unconscious girl fallen on ground after accident
    Healthy Red blood cells — Stock Photo
    Healthy Red blood cells
    Shoulder blood supply — Stock Photo
    Shoulder blood supply
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Human heart with coronary blood vessels, digital illustration. — Stock Photo
    Human heart with coronary blood vessels, digital illustration.
    Chef gutting a Mackerel. — Stock Photo
    Chef gutting a Mackerel.
    Digital illustration of mosquito sucking blood on skin. — Stock Photo
    Digital illustration of mosquito sucking blood on skin.
    Laboratory technician working on computer — Stock Photo
    Laboratory technician working on computer
    Healthcare worker sorting bags of blood — Stock Photo
    Healthcare worker sorting bags of blood
    Human silhouette showing heart with blood vessels and bronchial tree on white background. — Stock Photo
    Human silhouette showing heart with blood vessels and bronchial tree on white background.
    Realistic skeleton model showing female anatomy on white background, computer illustration. — Stock Photo
    Realistic skeleton model showing female anatomy on white background, computer illustration.
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration. — Stock Photo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration.
    Female nurse checking blood pressure of senior male patient in clinic examination room — Stock Photo
    Female nurse checking blood pressure of senior male patient in clinic examination room
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes. — Stock Photo
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes.
    Female body showing neck anatomy, computer illustration. — Stock Photo
    Female body showing neck anatomy, computer illustration.
    White blood cells and proteins, digital illustration. — Stock Photo
    White blood cells and proteins, digital illustration.
    Human cardiovascular system — Stock Photo
    Human cardiovascular system
    Blood sample and syringe on table. — Stock Photo
    Blood sample and syringe on table.
    Bones and blood supply system of skull — Stock Photo
    Bones and blood supply system of skull
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Megakaryocyte in human blood, computer illustration. — Stock Photo
    Megakaryocyte in human blood, computer illustration.
    Monocyte white blood cell, digital illustration. — Stock Photo
    Monocyte white blood cell, digital illustration.