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    Normal pelvic veins — Stock Photo
    Normal pelvic veins
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (green) — Stock Photo
    Gall bladder. Coloured scanning electron micrograph (SEM) of the surface of a gall bladder. This mucosa lining is made up of cuboidal epithelial cells (green)
    Digital illustration of bacteria on tip of needle. — Stock Photo
    Digital illustration of bacteria on tip of needle.
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms. — Stock Photo
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Blood vessel in the lung — Stock Photo
    Blood vessel in the lung
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    Coloured frankincense. This aromatic resin is tapped from the Boswellia sacra tree. It is used in aromatherapy and is widely associated with religious ceremonies. — Stock Photo
    Coloured frankincense. This aromatic resin is tapped from the Boswellia sacra tree. It is used in aromatherapy and is widely associated with religious ceremonies.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Normal leg veins, coloured angiogram - blood vessel X-ray — Stock Photo
    Normal leg veins, coloured angiogram - blood vessel X-ray
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    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.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Shoulder and elbow joints anatomy — Stock Photo
    Shoulder and elbow joints anatomy
    Scanning electron micrograph of PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph of PC12 neurone in culture.
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Coloured frontal X-ray of an artificial knee joint (white). — Stock Photo
    Coloured frontal X-ray of an artificial knee joint (white).
    Parotid salivary gland — Stock Photo
    Parotid salivary gland
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms. — Stock Photo
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    House dust mites — Stock Photo
    House dust mites
    Red blood cells — Stock Photo
    Red blood cells
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Colored scanning electron micrograph of osteoblast osteocyte bone cell. — Stock Photo
    Colored scanning electron micrograph of osteoblast osteocyte bone cell.
    Cape Pankof On Unimak Island — Stock Photo
    Cape Pankof On Unimak Island
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Eyelash follicle, coloured scanning electron micrograph (SEM). — Stock Photo
    Eyelash follicle, coloured scanning electron micrograph (SEM).
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone. — Stock Photo
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone.
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    Shoulder and elbow joints anatomy — Stock Photo
    Shoulder and elbow joints anatomy
    Freeze-fractured lens of an eye — Stock Photo
    Freeze-fractured lens of an eye
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background. — Stock Photo
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background.
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans — Stock Photo
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans
    Piece of cake with close-up of Staphylococcus bacteria, food poisoning conceptual illustration. — Stock Photo
    Piece of cake with close-up of Staphylococcus bacteria, food poisoning conceptual illustration.
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Knee of obese patient with arthritis — Stock Photo
    Knee of obese patient with arthritis
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient. — Stock Photo
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient.