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    Coloured scanning electron micrograph (SEM) of uric acid crystals. — Stock Photo
    Coloured scanning electron micrograph (SEM) of uric acid crystals.
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage. — Stock Photo
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage.
    Conceptual image of coxsackievirus cells — Stock Photo
    Conceptual image of coxsackievirus cells
    Illustration of diverticulitis in the descending colon of the human intestine — Stock Photo
    Illustration of diverticulitis in the descending colon of the human intestine
    Conceptual image of coxsackievirus cells — Stock Photo
    Conceptual image of coxsackievirus cells
    Microscopic view of pancreatic cancer cell — Stock Photo
    Microscopic view of pancreatic cancer cell
    Squamous carcinoma of the skin — Stock Photo
    Squamous carcinoma of the skin
    Comparison of different sized kidney stones in the human kidney — Stock Photo
    Comparison of different sized kidney stones in the human kidney
    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.
    Coloured X-rays of the right foot, showing a metal plate and screws (white) in the foot bone beneath the little toe (upper right). — Stock Photo
    Coloured X-rays of the right foot, showing a metal plate and screws (white) in the foot bone beneath the little toe (upper right).
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone). — Stock Photo
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone).
    Conceptual image of coxsackievirus cells — Stock Photo
    Conceptual image of coxsackievirus cells
    Medical illustration of diverticulosis in the colon — Stock Photo
    Medical illustration of diverticulosis in the colon
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage. — Stock Photo
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage.
    Pneumonia. X-ray of the chest of a patient with bacterial pneumonia (grainy white area, lower left) in the lower lobe of the right lung (left). — Stock Photo
    Pneumonia. X-ray of the chest of a patient with bacterial pneumonia (grainy white area, lower left) in the lower lobe of the right lung (left).
    Appendix showing appendicitis — Stock Photo
    Appendix showing appendicitis
    Coloured frontal X-ray of an artificial knee joint (white). — Stock Photo
    Coloured frontal X-ray of an artificial knee joint (white).
    Epidermoid carcinoma skin cancer — Stock Photo
    Epidermoid carcinoma skin cancer
    Computer illustration of a dengue virus particle. — Stock Photo
    Computer illustration of a dengue virus particle.
    Coloured scanning electron micrograph (SEM) of uric acid crystals. — Stock Photo
    Coloured scanning electron micrograph (SEM) of uric acid crystals.
    Conceptual image of coxsackievirus cells — Stock Photo
    Conceptual image of coxsackievirus cells
    Brunette girl sitting on bed among cushions and toys and looking at camera. — Stock Photo
    Brunette girl sitting on bed among cushions and toys and looking at camera.
    Medical illustration of diverticulosis in the colon — Stock Photo
    Medical illustration of diverticulosis in the colon
    X-ray showing a fractured tibia — Stock Photo
    X-ray showing a fractured tibia
    Medical ilustration of an appendix with appendicitis — Stock Photo
    Medical ilustration of an appendix with appendicitis
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Brunette woman sitting on bed and looking at camera — Stock Photo
    Brunette woman sitting on bed and looking at camera
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Kidney with acute nephritis — Stock Photo
    Kidney with acute nephritis
    Atherosclerosis and narrowed artery — Stock Photo
    Atherosclerosis and narrowed artery
    X-ray showing a fractured tibia — Stock Photo
    X-ray showing a fractured tibia
    Osteoporotic bone pathology — Stock Photo
    Osteoporotic bone pathology
    Squamous carcinoma of the skin — Stock Photo
    Squamous carcinoma of the skin
    Skull affected by Paget's disease — Stock Photo
    Skull affected by Paget's disease
    Inflamed knee cartilage — Stock Photo
    Inflamed knee cartilage
    Lung cancer pathology — Stock Photo
    Lung cancer pathology
    Pathological anatomy of Brain stoke — Stock Photo
    Pathological anatomy of Brain stoke
    Bowel cancer pathology — Stock Photo
    Bowel cancer pathology
    Rotavirus virus particles in the bloodstream — Stock Photo
    Rotavirus virus particles in the bloodstream
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Appendix showing appendicitis — Stock Photo
    Appendix showing appendicitis
    Inflamed knee cartilage — Stock Photo
    Inflamed knee cartilage
    Heart attack rendering — Stock Photo
    Heart attack rendering
    West Nile virus particles — Stock Photo
    West Nile virus particles
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Cancer cell attacked by T cell — Stock Photo
    Cancer cell attacked by T cell
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Artwork of a tooth with cavities — Stock Photo
    Artwork of a tooth with cavities
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Abstract pathogenic microorganisms — Stock Photo
    Abstract pathogenic microorganisms
    Cancer cell and T cells — Stock Photo
    Cancer cell and T cells
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Cancer cell and T cells — Stock Photo
    Cancer cell and T cells
    T-cell attached to cancer cell — Stock Photo
    T-cell attached to cancer cell
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Cancer cell attacked by T cell — Stock Photo
    Cancer cell attacked by T cell
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Rotavirus virus particles in the blood — Stock Photo
    Rotavirus virus particles in the blood