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    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue.
    Area of inflammation in shoulder joint — Stock Photo
    Area of inflammation in shoulder joint
    Red blood cells and blood vessel — Stock Photo
    Red blood cells and blood vessel
    Normal skull structure of young adult — Stock Photo
    Normal skull structure of young adult
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Foreign body in finger — Stock Photo
    Foreign body in finger
    Human tooth decay — Stock Photo
    Human tooth decay
    Longitudinal section of a human sciatic l nerve — Stock Photo
    Longitudinal section of a human sciatic l nerve
    Human internal brain anatomy — Stock Photo
    Human internal brain anatomy
    Human silhouette with skeletal system — Stock Photo
    Human silhouette with skeletal system
    Red blood cells in the bloodstream — Stock Photo
    Red blood cells in the bloodstream
    X-ray of dislocated shoulder — Stock Photo
    X-ray of dislocated shoulder
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Muscles controlling human posture — Stock Photo
    Muscles controlling human posture
    DNA molecule structure — Stock Photo
    DNA molecule structure
    Skull affected by Paget's disease — Stock Photo
    Skull affected by Paget's disease
    Axon connections between cells — Stock Photo
    Axon connections between cells
    Normal skeletal system — Stock Photo
    Normal skeletal system
    Human sperm cells — Stock Photo
    Human sperm cells
    Skeletal system of adult female — Stock Photo
    Skeletal system of adult female
    Human thyroid gland — Stock Photo
    Human thyroid gland
    Healthy intestinal villi — Stock Photo
    Healthy intestinal villi
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Human thyroid gland — Stock Photo
    Human thyroid gland
    Rod-shaped bacterial infection — Stock Photo
    Rod-shaped bacterial infection
    Clostridium bacteria colony — Stock Photo
    Clostridium bacteria colony
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Cancellous Bone tissue — Stock Photo
    Cancellous Bone tissue
    Human shoulder anatomy — Stock Photo
    Human shoulder anatomy
    Fatcells structure and anatomy — Stock Photo
    Fatcells structure and anatomy
    Human fetus age 37 weeks — Stock Photo
    Human fetus age 37 weeks
    Plague bacteria illustration — Stock Photo
    Plague bacteria illustration
    Skeletal system and cartilage of adult human — Stock Photo
    Skeletal system and cartilage of adult human
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Chromosomes during cell division — Stock Photo
    Chromosomes during cell division
    Skeletal system and internal organs — Stock Photo
    Skeletal system and internal organs
    Male musculature anatomy — Stock Photo
    Male musculature anatomy
    Male musculature and sternum — Stock Photo
    Male musculature and sternum
    Pain localized in lumbar section of spine — Stock Photo
    Pain localized in lumbar section of spine
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Adult male anatomy — Stock Photo
    Adult male anatomy
    Normal skull structure of adult — Stock Photo
    Normal skull structure of adult
    Skeletal system of adult female — Stock Photo
    Skeletal system of adult female
    Red blood cells flowing inside an artery — Stock Photo
    Red blood cells flowing inside an artery
    Adult male skeleton — Stock Photo
    Adult male skeleton
    Scientist viewing bacteria cultures — Stock Photo
    Scientist viewing bacteria cultures
    Central nervous system of adult — Stock Photo
    Central nervous system of adult
    Human foot bones — Stock Photo
    Human foot bones
    Hand of a patient with osteoarthritis — Stock Photo
    Hand of a patient with osteoarthritis
    Human skeletal system and structural anatomy — Stock Photo
    Human skeletal system and structural anatomy
    Human tooth being removed — Stock Photo
    Human tooth being removed
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Light micrograph (LM) showing blood supply to muscle fibers. — Stock Photo
    Light micrograph (LM) showing blood supply to muscle fibers.
    Apoptosis of neuron cell — Stock Photo
    Apoptosis of neuron cell
    Normal and healthy abdomen anatomy — Stock Photo
    Normal and healthy abdomen anatomy
    Total hip replacement — Stock Photo
    Total hip replacement