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    Prosthetic heart valves — Stock Photo
    Prosthetic heart valves
    Human skeleton with organs and circulatory system — Stock Photo
    Human skeleton with organs and circulatory system
    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.
    Person donating blood in the hospital, cropped — Stock Photo
    Person donating blood in the hospital, cropped
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Blood orange and Aperol granita — Stock Photo
    Blood orange and Aperol granita
    Illustration of human silhouette with painful heart. — Stock Photo
    Illustration of human silhouette with painful heart.
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Male head and neck anatomy and musculature, digital illustration. — Stock Photo
    Male head and neck anatomy and musculature, digital illustration.
    Close-up view of medical equipment on tray. — Stock Photo
    Close-up view of medical equipment on tray.
    3d illustration of cross-section of human eye in side view and frontal view. — Stock Photo
    3d illustration of cross-section of human eye in side view and frontal view.
    Whole and half blood oranges — Stock Photo
    Whole and half blood oranges
    Microscope and pile on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and pile on Petri dishes in laboratory on blue background.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Blood orange tart with icing sugar — Stock Photo
    Blood orange tart with icing sugar
    Colored angiogram of carotid artery in neck of mature patient. — Stock Photo
    Colored angiogram of carotid artery in neck of mature patient.
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Transparent body model showing male anatomy and internal organs, digital illustration. — Stock Photo
    Transparent body model showing male anatomy and internal organs, digital illustration.
    Lymphocytes white blood cells, digital illustration. — Stock Photo
    Lymphocytes white blood cells, digital illustration.
    Medical illustration of arteries, veins and lymphatic system in human legs and feet — Stock Photo
    Medical illustration of arteries, veins and lymphatic system in human legs and feet
    Biologist with protective gloves performing a coronavirus test on a person in a car — Stock Photo
    Biologist with protective gloves performing a coronavirus test on a person in a car
    Transparent body model showing male anatomy and internal organs, digital illustration. — Stock Photo
    Transparent body model showing male anatomy and internal organs, digital illustration.
    Veins in transparent dog body, cropped, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, cropped, anatomical computer illustration.
    Blood clot formed by red blood cells — Stock Photo
    Blood clot formed by red blood cells
    Cropped view of scientist hands holding samples for biological research. — Stock Photo
    Cropped view of scientist hands holding samples for biological research.
    Human bronchi and heart, illustration — Stock Photo
    Human bronchi and heart, illustration
    Viral particle infection blood stream — Stock Photo
    Viral particle infection blood stream
    3d illustration of blood cells and Plasmodium parasites causing malaria. — Stock Photo
    3d illustration of blood cells and Plasmodium parasites causing malaria.
    Close-up of pipetting samples into Petri dishes. — Stock Photo
    Close-up of pipetting samples into Petri dishes.
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Clay casserole with delicious dish made of baked rice and chickpeas with vegetables and blood sausages garnished with head of garlic — Stock Photo
    Clay casserole with delicious dish made of baked rice and chickpeas with vegetables and blood sausages garnished with head of garlic
    Senior mixed race woman spending time at home, sitting on a chair and taking her blood pressure with a tonometer, social distancing and self isolation in quarantine lockdown — Stock Photo
    Senior mixed race woman spending time at home, sitting on a chair and taking her blood pressure with a tonometer, social distancing and self isolation in quarantine lockdown
    Unrecognizable serious black male scientist in medical robe and mask demonstrating blood sample in test tube while having video call on laptop in clinic — Stock Photo
    Unrecognizable serious black male scientist in medical robe and mask demonstrating blood sample in test tube while having video call on laptop in clinic
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    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.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    High angle of cheerful adult woman embracing newborn child covered with blood after giving birth in delivery room of contemporary hospital — Stock Photo
    High angle of cheerful adult woman embracing newborn child covered with blood after giving birth in delivery room of contemporary hospital
    Paramedics examining injured girl on street — Stock Photo
    Paramedics examining injured girl on street
    Blood pressure and circulatory system with labels — Stock Photo
    Blood pressure and circulatory system with labels
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Cardiovascular system in normal male body, computer illustration. — Stock Photo
    Cardiovascular system in normal male body, computer illustration.
    3d digital illustration of narrowed blood vessel. — Stock Photo
    3d digital illustration of narrowed blood vessel.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Human rib cage showing heart with vessels and bronchial tree on white background. — Stock Photo
    Human rib cage showing heart with vessels and bronchial tree on white background.
    Close-up of blood bags in a tray at blood bank — Stock Photo
    Close-up of blood bags in a tray at blood bank
    Senior mixed race man with female doctor home visiting wearing face masks taking blood pressure. senior healthcare at home during quarantine lockdown. — Stock Photo
    Senior mixed race man with female doctor home visiting wearing face masks taking blood pressure. senior healthcare at home during quarantine lockdown.
    Colored X-ray showing blood vessels in lung. — Stock Photo
    Colored X-ray showing blood vessels in lung.
    Doctor taking blood sample — Stock Photo
    Doctor taking blood sample
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte. — Stock Photo
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte.
    Wall of a muscular artery — Stock Photo
    Wall of a muscular artery
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Winter salad of chicory — Stock Photo
    Winter salad of chicory
    Wedges of blood orange — Stock Photo
    Wedges of blood orange