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    Whole and half blood oranges — Stock Photo
    Whole and half blood oranges
    Molecular models of antibody structures, digital illustration. — Stock Photo
    Molecular models of antibody structures, digital illustration.
    Blood pressure gauge. close-up. — Stock Photo
    Blood pressure gauge. close-up.
    Scientists preparing multiwell plate with blood samples for testing and analysis. — Stock Photo
    Scientists preparing multiwell plate with blood samples for testing and analysis.
    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.
    Skeletal and cardiovascular systems — Stock Photo
    Skeletal and cardiovascular systems
    Head louse on human hair — Stock Photo
    Head louse on human hair
    Illustration of flowing human blood cells. — Stock Photo
    Illustration of flowing human blood cells.
    Female upper body anatomy and muscular system, computer illustration. — Stock Photo
    Female upper body anatomy and muscular system, computer illustration.
    Cat flea head — Stock Photo
    Cat flea head
    Illustration of malaria infected blood cells. — Stock Photo
    Illustration of malaria infected blood cells.
    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.
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Adult male anatomy — Stock Photo
    Adult male anatomy
    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.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Vascular system and skeleton of an adult — Stock Photo
    Vascular system and skeleton of an adult
    Realistic human heart, digital illustration. — Stock Photo
    Realistic human heart, digital illustration.
    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.
    Bacterial infection spreading in bloodstream — Stock Photo
    Bacterial infection spreading in bloodstream
    Gloved hand holding multiwell tray containing blood samples. — Stock Photo
    Gloved hand holding multiwell tray containing blood samples.
    Veterinarian in sterile gloves with surgical tweezers and scissors operating anonymous animal against heart rate monitor in hospital — Stock Photo
    Veterinarian in sterile gloves with surgical tweezers and scissors operating anonymous animal against heart rate monitor in hospital
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Digital illustration of blue bacteria in bloodstream. — Stock Photo
    Digital illustration of blue bacteria in bloodstream.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Illustration of HIV virus particles in human blood. — Stock Photo
    Illustration of HIV virus particles in human blood.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Coloured coronary angiogram (X-ray) of a 59 year old patient with severe stenosis (narrowing) in the left anterior interventricular coronary artery (running down left) and the left circumflex artery (centre). — Stock Photo
    Coloured coronary angiogram (X-ray) of a 59 year old patient with severe stenosis (narrowing) in the left anterior interventricular coronary artery (running down left) and the left circumflex artery (centre).
    Blood vessels of human head and neck, digital illustration. — Stock Photo
    Blood vessels of human head and neck, digital illustration.
    Laboratory technician analyzing blood samples in blood bank — Stock Photo
    Laboratory technician analyzing blood samples in blood bank
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Medical illustration of arteries, veins and lymphatic system in female midsection — Stock Photo
    Medical illustration of arteries, veins and lymphatic system in female midsection
    Leucocyte cell capturing harmful bacteria, computer illustration. — Stock Photo
    Leucocyte cell capturing harmful bacteria, computer illustration.
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    Colored magnetic resonance imaging head scan showing arteriovenous malformation. — Stock Photo
    Colored magnetic resonance imaging head scan showing arteriovenous malformation.
    Bottle of Pills with Glass of Water and Dish — Stock Photo
    Bottle of Pills with Glass of Water and Dish
    Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( pink) is exposed to food — Stock Photo
    Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( pink) is exposed to food
    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.
    Heart attack rendering — Stock Photo
    Heart attack rendering
    Illustration of cross section of human skin with hair follicle and blood vessels. — Stock Photo
    Illustration of cross section of human skin with hair follicle and blood vessels.
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Grey human heart model on white background, computer illustration. — Stock Photo
    Grey human heart model on white background, computer illustration.
    Blood red slices ripest pomegranate — Stock Photo
    Blood red slices ripest pomegranate
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Woman checking her insulin levels before eating a cake — Stock Photo
    Woman checking her insulin levels before eating a cake
    Adult parasitic louse — Stock Photo
    Adult parasitic louse
    Midsection view showing internal organs of human body — Stock Photo
    Midsection view showing internal organs of human body
    Red human heart on black background, computer illustration. — Stock Photo
    Red human heart on black background, computer illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Male head and neck anatomy, digital illustration. — Stock Photo
    Male head and neck anatomy, digital illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Close-up of scientist holding blood testing microtubes. — Stock Photo
    Close-up of scientist holding blood testing microtubes.
    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.
    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.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Illustration of senior woman blue silhouette with highlighted heart on white background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted heart on white background.
    Mid section of female doctor checking blood pressure of male patient in the ward at hospital — Stock Photo
    Mid section of female doctor checking blood pressure of male patient in the ward at hospital