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    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Side view of young woman in protective mask sitting in medical armchair during blood transfusion procedure in contemporary hospital — Stock Photo
    Side view of young woman in protective mask sitting in medical armchair during blood transfusion procedure in contemporary hospital
    Blue single-use mask for virus protection on red background — Stock Photo
    Blue single-use mask for virus protection on red background
    Illustration of heart in human body silhouette. — Stock Photo
    Illustration of heart in human body silhouette.
    Veterinarian examining dog in veterinary surgery — Stock Photo
    Veterinarian examining dog in veterinary surgery
    Close-up shot of delicious Moro blood oranges — Stock Photo
    Close-up shot of delicious Moro blood oranges
    Normal and healthy abdomen anatomy — Stock Photo
    Normal and healthy abdomen anatomy
    Anatomy of female kidneys reproductive organs — Stock Photo
    Anatomy of female kidneys reproductive organs
    Mature male doctor processing donor blood in bags. — Stock Photo
    Mature male doctor processing donor blood in bags.
    Sicilian halved blood oranges — Stock Photo
    Sicilian halved blood oranges
    Muffins with matcha, blood orange and raisins — Stock Photo
    Muffins with matcha, blood orange and raisins
    Lymphocyte white blood cells — Stock Photo
    Lymphocyte white blood cells
    Blood orange tart with icing sugar — Stock Photo
    Blood orange tart with icing sugar
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Back view of anonymous fearless toreador performing holding capote with wild bull on bullring during corrida festival — Stock Photo
    Back view of anonymous fearless toreador performing holding capote with wild bull on bullring during corrida festival
    Illustration of a dendritic cell (centre, purple) activating T-cells (teal). Dendritic cells recognise viruses and present information about their antigens to T-cells — Stock Photo
    Illustration of a dendritic cell (centre, purple) activating T-cells (teal). Dendritic cells recognise viruses and present information about their antigens to T-cells
    Illustration of flowing human blood cells. — Stock Photo
    Illustration of flowing human blood cells.
    Sportswoman with curvy body with heart rate on wearable tracker during workout on street while looking away — Stock Photo
    Sportswoman with curvy body with heart rate on wearable tracker during workout on street while looking away
    Black pudding with onion toasts — Stock Photo
    Black pudding with onion toasts
    Prosthetic heart valves — Stock Photo
    Prosthetic heart valves
    Group of surgeons performing operation in operation theater of hospital — Stock Photo
    Group of surgeons performing operation in operation theater of hospital
    Illustration of human heart anatomy on grey background. — Stock Photo
    Illustration of human heart anatomy on grey background.
    Human heart model on blue background, computer illustration. — Stock Photo
    Human heart model on blue background, computer illustration.
    Blood pressure gauge. close-up. — Stock Photo
    Blood pressure gauge. close-up.
    Anatomy of male urinary system — Stock Photo
    Anatomy of male urinary system
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration. — Stock Photo
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration.
    Vascular system in normal female body, digital illustration. — Stock Photo
    Vascular system in normal female body, digital illustration.
    Labelled test tubes with blood samples. — Stock Photo
    Labelled test tubes with blood samples.
    Nanomachines working on red blood cells, digital illustration. — Stock Photo
    Nanomachines working on red blood cells, digital illustration.
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Blood Red Moon — Stock Photo
    Blood Red Moon
    Closeup set of medical flasks with blood samples arranged in container in modern hospital laboratory — Stock Photo
    Closeup set of medical flasks with blood samples arranged in container in modern hospital laboratory
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration. — Stock Photo
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration.
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    Coronary blood vessels in blue human heart model, digital illustration. — Stock Photo
    Coronary blood vessels in blue human heart model, digital illustration.
    Realistic human heart and blood vessels on white background, digital illustration. — Stock Photo
    Realistic human heart and blood vessels on white background, digital illustration.
    Antibodies binding influenza virus. Illustration of human antibodies (orange) neutralizing a influenza virus particle (blue). Each Y-shaped molecule has two arms that can bind to specific antigens — Stock Photo
    Antibodies binding influenza virus. Illustration of human antibodies (orange) neutralizing a influenza virus particle (blue). Each Y-shaped molecule has two arms that can bind to specific antigens
    School aged boy dressed as Dracula posing in costume on Halloween — Stock Photo
    School aged boy dressed as Dracula posing in costume on Halloween
    Pipetting blood sample, close-up. — Stock Photo
    Pipetting blood sample, close-up.
    Human upper body blood vessels, digital illustration. — Stock Photo
    Human upper body blood vessels, digital illustration.
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells — Stock Photo
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells
    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red).
    Female mosquito on skin — Stock Photo
    Female mosquito on skin
    Close-up of laboratory technician working in blood bank — Stock Photo
    Close-up of laboratory technician working in blood bank
    Plasma cell and antibodies — Stock Photo
    Plasma cell and antibodies
    Illustration of stent inside of human fatty artery. — Stock Photo
    Illustration of stent inside of human fatty artery.
    Conceptual digital illustration of horseshoe crab blood in blue color containing haemocyanin and amoebocytes. — Stock Photo
    Conceptual digital illustration of horseshoe crab blood in blue color containing haemocyanin and amoebocytes.
    Blood vessels of foot, computer illustration — Stock Photo
    Blood vessels of foot, computer illustration
    Brain blood supply — Stock Photo
    Brain blood supply
    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    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
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Laboratory technician writing on clipboard in blood bank — Stock Photo
    Laboratory technician writing on clipboard in blood bank
    Skin anatomy showing tissue stratification — Stock Photo
    Skin anatomy showing tissue stratification
    Female doctor taking blood pressure of senior woman. — Stock Photo
    Female doctor taking blood pressure of senior woman.
    Laboratory technicians working together in blood bank — Stock Photo
    Laboratory technicians working together in blood bank
    Normal red blood cells — Stock Photo
    Normal red blood cells