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    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital 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.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Medical nanorobot in human blood vessel, panoramic digital illustration. — Stock Photo
    Medical nanorobot in human blood vessel, panoramic digital illustration.
    Low angle view illustration of blue silhouette of obese woman with highlighted heart. — Stock Photo
    Low angle view illustration of blue silhouette of obese woman with highlighted heart.
    3D rendering of human skeleton with internal organs on black background — Stock Photo
    3D rendering of human skeleton with internal organs on black background
    Doctor using sphygmomanometer and stethoscope for measuring patient blood pressure. — Stock Photo
    Doctor using sphygmomanometer and stethoscope for measuring patient blood pressure.
    Close-up of external filter for treatment of patient with kidney failure. — Stock Photo
    Close-up of external filter for treatment of patient with kidney failure.
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Illustration of silhouette of obese man with visible heart. — Stock Photo
    Illustration of silhouette of obese man with visible heart.
    Structural anatomy of human pelvis — Stock Photo
    Structural anatomy of human pelvis
    Top view of two hands with Callos dishes over yellow background — Stock Photo
    Top view of two hands with Callos dishes over yellow background
    Neutrophil cells. Coloured transmission electron micrograph (TEM) of human neutrophil cells. Neutrophils are involved in inflammatory responses to tissue damage, where they engulf and destroy microorganisms — Stock Photo
    Neutrophil cells. Coloured transmission electron micrograph (TEM) of human neutrophil cells. Neutrophils are involved in inflammatory responses to tissue damage, where they engulf and destroy microorganisms
    Female doctor taking blood pressure of senior woman. — Stock Photo
    Female doctor taking blood pressure of senior woman.
    Half-full anatomical heart model 3D illustration isolated on white background. — Stock Photo
    Half-full anatomical heart model 3D illustration isolated on white background.
    Male head and neck anatomy, digital illustration. — Stock Photo
    Male head and neck anatomy, digital illustration.
    Neutrophil cells aggregating at site of infection — Stock Photo
    Neutrophil cells aggregating at site of infection
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems
    Doctor drawing blood — Stock Photo
    Doctor drawing blood
    Mid section of senior man donating blood in blood bank — Stock Photo
    Mid section of senior man donating blood in blood bank
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Human skeleton with organs and circulatory system — Stock Photo
    Human skeleton with organs and circulatory system
    Illustration of heart and close-up of infection bacteria in male body silhouette on black background. — Stock Photo
    Illustration of heart and close-up of infection bacteria in male body silhouette on black background.
    A Super Blue Blood Moon appears above the Sierra Nevada mountain range — Stock Photo
    A Super Blue Blood Moon appears above the Sierra Nevada mountain range
    Blood orange salad with olives., red onion and parsley — Stock Photo
    Blood orange salad with olives., red onion and parsley
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.
    Light micrograph of a section through the choroid plexus of brain, showing two corpora amylacea (purple, bottom). — Stock Photo
    Light micrograph of a section through the choroid plexus of brain, showing two corpora amylacea (purple, bottom).
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    Close-up of plasma bags on a table in blood bank — Stock Photo
    Close-up of plasma bags on a table in blood bank
    Human veins anatomy — Stock Photo
    Human veins anatomy
    Fresh blood oranges and drinking glasses — Stock Photo
    Fresh blood oranges and drinking glasses
    Close-up of vital signs on monitor in intensive care ward. — Stock Photo
    Close-up of vital signs on monitor in intensive care ward.
    Blood vessels of foot, computer illustration — Stock Photo
    Blood vessels of foot, computer illustration
    Donated blood in plastic bag — Stock Photo
    Donated blood in plastic bag
    Frontal illustration of blue silhouette of obese woman with highlighted heart on black background. — Stock Photo
    Frontal illustration of blue silhouette of obese woman with highlighted heart on black background.
    Female abdominal blood vessels, computer illustration. — Stock Photo
    Female abdominal blood vessels, computer illustration.
    Group of surgeons performing operation in operation theater of hospital — Stock Photo
    Group of surgeons performing operation in operation theater of hospital
    Three blood oranges — Stock Photo
    Three blood oranges
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the — Stock Photo
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel. — Stock Photo
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Magnified digital illustration of macrophage cell. — Stock Photo
    Magnified digital illustration of macrophage cell.
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    White blood cell, digital illustration. — Stock Photo
    White blood cell, digital illustration.
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system. — Stock Photo
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system.
    Illustration of human heart anatomy on grey background. — Stock Photo
    Illustration of human heart anatomy on grey background.
    Fresh blood oranges and drinking glasses — Stock Photo
    Fresh blood oranges and drinking glasses
    Male abdominal blood vessels, digital illustration. — Stock Photo
    Male abdominal blood vessels, digital illustration.
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Corella bird walking along a fence (Cacatua sanguinea), Perth, Western Australia, Australia — Stock Photo
    Corella bird walking along a fence (Cacatua sanguinea), Perth, Western Australia, Australia
    Close-up shot of delicious Black pudding with apples — Stock Photo
    Close-up shot of delicious Black pudding with apples
    Portrait of injured girl on street — Stock Photo
    Portrait of injured girl on street
    Tick on human skin, computer illustration. — Stock Photo
    Tick on human skin, computer illustration.
    Human hand with nervous, lymphatic and circulatory systems — Stock Photo
    Human hand with nervous, lymphatic and circulatory systems
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Portrait of wild cheetah with prey in South Africa, Mpumalanga — Stock Photo
    Portrait of wild cheetah with prey in South Africa, Mpumalanga
    Human heart with blood vessels and bronchial tree on white background. — Stock Photo
    Human heart with blood vessels and bronchial tree on white background.