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    Pinned wrist fracture, coloured frontal X-ray. — Stock Photo
    Pinned wrist fracture, coloured frontal X-ray.
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Scanning electron micrograph of dermestid beetle head. — Stock Photo
    Scanning electron micrograph of dermestid beetle head.
    Grasses, coloured X-ray, radiology scan — Stock Photo
    Grasses, coloured X-ray, radiology scan
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM). — Stock Photo
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM).
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    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.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Campylobacter jejuni bacteria with flagella, digital artwork. — Stock Photo
    Campylobacter jejuni bacteria with flagella, digital artwork.
    Colored angiogram of carotid artery in neck of mature patient. — Stock Photo
    Colored angiogram of carotid artery in neck of mature patient.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores. — Stock Photo
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores.
    Normal skull anatomy of young adult — Stock Photo
    Normal skull anatomy of young adult
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue — Stock Photo
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue
    Fractured ankle bone, computer illustration — Stock Photo
    Fractured ankle bone, computer illustration
    Human skeleton sitting with laptop computer, coloured X-ray. — Stock Photo
    Human skeleton sitting with laptop computer, coloured X-ray.
    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
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Healthy lungs of a 30 year old patient — Stock Photo
    Healthy lungs of a 30 year old patient
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti. — Stock Photo
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti.
    Fisherman holding fresh caught Jobfish. Tahiti — Stock Photo
    Fisherman holding fresh caught Jobfish. Tahiti
    Wasp eye numerous lenses — Stock Photo
    Wasp eye numerous lenses
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    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.
    Cape Pankof On Unimak Island — Stock Photo
    Cape Pankof On Unimak Island
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli.
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Photosynthetic Navicula sp. diatom — Stock Photo
    Photosynthetic Navicula sp. diatom
    Young vain man in stylish wear with long nails standing on tiled wall looking at camera — Stock Photo
    Young vain man in stylish wear with long nails standing on tiled wall looking at camera
    Colored computed tomography scan of section through brain of senior male patient with dementia. — Stock Photo
    Colored computed tomography scan of section through brain of senior male patient with dementia.
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Lungs with Legionnaires disease and close-up of Legionella pneumophila bacteria, conceptual illustration. — Stock Photo
    Lungs with Legionnaires disease and close-up of Legionella pneumophila bacteria, conceptual illustration.
    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).
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent
    Coloured profile (side view) X-ray of a healthy breast. — Stock Photo
    Coloured profile (side view) X-ray of a healthy breast.
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera — Stock Photo
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera
    Releasing a false albacore at the boat off the Atlantic coast — Stock Photo
    Releasing a false albacore at the boat off the Atlantic coast
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower.
    False Lilies of the Valley plants with flowers and green leaves — Stock Photo
    False Lilies of the Valley plants with flowers and green leaves
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue)
    A Grappling Hook, An Important Tool On A Commercial Halibut Fishing Boat; Southwest Alaska, United States Of America — Stock Photo
    A Grappling Hook, An Important Tool On A Commercial Halibut Fishing Boat; Southwest Alaska, United States Of America
    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Fly larva head anatomy — Stock Photo
    Fly larva head anatomy
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaskan stream during autumn; Alaska, United States of America — Stock Photo
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaskan stream during autumn; Alaska, United States of America
    Person making prosthetic teeth, close-up. — Stock Photo
    Person making prosthetic teeth, close-up.
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Silhouette with lungs pneumonia caused by measles virus, conceptual illustration. — Stock Photo
    Silhouette with lungs pneumonia caused by measles virus, conceptual illustration.
    West End neighborhood of Vancouver and Burrard Street Bridge across False creek, British Columbia, Canada. — Stock Photo
    West End neighborhood of Vancouver and Burrard Street Bridge across False creek, British Columbia, Canada.