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    Close-up of technician storing stem cell samples in cryostorage. — Stock Photo
    Close-up of technician storing stem cell samples in cryostorage.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Molecular model of pink mdm2 protein binding to anti-cancer protein p53. — Stock Photo
    Molecular model of pink mdm2 protein binding to anti-cancer protein p53.
    Tiger lily pollen — Stock Photo
    Tiger lily pollen
    Illustration of 2 cell stage egg on black background. — Stock Photo
    Illustration of 2 cell stage egg on black background.
    Digital illustration of shaped virus cells. — Stock Photo
    Digital illustration of shaped virus cells.
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Digital illustration of nerve neurons cells. — Stock Photo
    Digital illustration of nerve neurons cells.
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria. — Stock Photo
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria.
    Skin blood vessel. Coloured scanning electron micrograph (SEM) of a blood vessel (arteriole) in the dermis of the skin. In the blood vessel are red blood cells (erythrocytes, red) which carry oxygen around the body — Stock Photo
    Skin blood vessel. Coloured scanning electron micrograph (SEM) of a blood vessel (arteriole) in the dermis of the skin. In the blood vessel are red blood cells (erythrocytes, red) which carry oxygen around the body
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane. — Stock Photo
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane.
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells — Stock Photo
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Illustration of a blood clot in damaged blood vessel made of red blood cells, platelets and fibrin protein strands. — Stock Photo
    Illustration of a blood clot in damaged blood vessel made of red blood cells, platelets and fibrin protein strands.
    Abstract illustration of green bacilli bacteria, full frame. — Stock Photo
    Abstract illustration of green bacilli bacteria, full frame.
    German chamomile flower pollen grain — Stock Photo
    German chamomile flower pollen grain
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Cancer cell, computer illustration. — Stock Photo
    Cancer cell, computer illustration.
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells — Stock Photo
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells
    Human sperm cells — Stock Photo
    Human sperm cells
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain.
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Digital artwork of white blood cells attacking green illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking green illuminated cancer cell.
    Cancer cell being attacked by leukocytes, computer illustration — Stock Photo
    Cancer cell being attacked by leukocytes, computer illustration
    Abstract human brain nerve cells, digital illustration. — Stock Photo
    Abstract human brain nerve cells, digital illustration.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone — Stock Photo
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone
    Close-up illustration of pollen grain of mimosa and mimosa flowers. — Stock Photo
    Close-up illustration of pollen grain of mimosa and mimosa flowers.
    Digital illustration of budding yeast cells in imaging flow cytometry. — Stock Photo
    Digital illustration of budding yeast cells in imaging flow cytometry.
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Red blood cells, computer illustration — Stock Photo
    Red blood cells, computer illustration
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Digital illustration of human cilia cells. — Stock Photo
    Digital illustration of human cilia cells.
    Measles virus particles budding from cells, digital illustration. — Stock Photo
    Measles virus particles budding from cells, digital illustration.
    Bacterial blood infection — Stock Photo
    Bacterial blood infection
    Neural network and signals — Stock Photo
    Neural network and signals
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    3d illustration of virus and bacteria entering human skin. — Stock Photo
    3d illustration of virus and bacteria entering human skin.
    Cancer cells, computer illustration — Stock Photo
    Cancer cells, computer illustration
    Illustration of CAR DNA modified T-cell immunotherapy process for cancer treatment. — Stock Photo
    Illustration of CAR DNA modified T-cell immunotherapy process for cancer treatment.
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Immunodeficiency virus infection in blood stream — Stock Photo
    Immunodeficiency virus infection in blood stream
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Abstract 3d illustration of nerve cells with connections in human nervous system. — Stock Photo
    Abstract 3d illustration of nerve cells with connections in human nervous system.
    Blastocyst hollow ball of cells with fluid, digital illustration. — Stock Photo
    Blastocyst hollow ball of cells with fluid, digital illustration.
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells — Stock Photo
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells
    Magnified digital illustration of Candida albicans yeast. — Stock Photo
    Magnified digital illustration of Candida albicans yeast.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Female reproductive system — Stock Photo
    Female reproductive system