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    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis, showing fibrosis and lack of a functional liver anatomy. — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis, showing fibrosis and lack of a functional liver anatomy.
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver
    Adult skeleton taking child skeleton to football, X-ray. — Stock Photo
    Adult skeleton taking child skeleton to football, X-ray.
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Liver with cirrhosis, computer illustration. Cirrhosis is a consequence of chronic liver disease characterized by fibrosis and scarring of tissue — Stock Photo
    Liver with cirrhosis, computer illustration. Cirrhosis is a consequence of chronic liver disease characterized by fibrosis and scarring of tissue
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    Human brain with highlighted temporal lobe and close-up view of neurons located in temporal lobe, computer illustration — Stock Photo
    Human brain with highlighted temporal lobe and close-up view of neurons located in temporal lobe, computer illustration
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis-associated hepatocellular nodules. — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis-associated hepatocellular nodules.
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous systems and other internal organs. — Stock Photo
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous systems and other internal organs.
    Human anatomy, 3d illustration. — Stock Photo
    Human anatomy, 3d illustration.
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous, digestive and respiratory systems. — Stock Photo
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous, digestive and respiratory systems.
    Human anatomy, 3d illustration. — Stock Photo
    Human anatomy, 3d illustration.
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous, digestive and respiratory systems. — Stock Photo
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous, digestive and respiratory systems.
    The dentistry teacher working the denture with video camera — Stock Photo
    The dentistry teacher working the denture with video camera
    Human anatomy, 3d illustration. — Stock Photo
    Human anatomy, 3d illustration.
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous systems and other internal organs. — Stock Photo
    Human body systems. Illustrations of the muscular, skeletal, cardiovascular, nervous systems and other internal organs.
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    Human anatomy, 3d illustration. — Stock Photo
    Human anatomy, 3d illustration.
    Dental anatomy student's hands working plastic human head — Stock Photo
    Dental anatomy student's hands working plastic human head
    The dentistry teacher working the denture with video camera — Stock Photo
    The dentistry teacher working the denture with video camera
    Dental anatomy student's hands working plastic human head — Stock Photo
    Dental anatomy student's hands working plastic human head
    Plastic human head to study dental anatomy — Stock Photo
    Plastic human head to study dental anatomy
    The dentistry teacher working the denture with video camera — Stock Photo
    The dentistry teacher working the denture with video camera
    The dentistry teacher working the denture with video camera — Stock Photo
    The dentistry teacher working the denture with video camera
    Person with hands on their head, headache, coloured X-ray. — Stock Photo
    Person with hands on their head, headache, coloured X-ray.
    Human skull with light bulb, coloured X-ray. — Stock Photo
    Human skull with light bulb, coloured X-ray.
    Skeleton and camera, X-ray — Stock Photo
    Skeleton and camera, X-ray
    Gun and skeleton, X-ray. — Stock Photo
    Gun and skeleton, X-ray.
    Skeleton bike stunt, X-ray. — Stock Photo
    Skeleton bike stunt, X-ray.
    Archaeological excavations. Human skeleton remains found in an ancient tomb. — Stock Photo
    Archaeological excavations. Human skeleton remains found in an ancient tomb.
    Skeleton foot in high heel shoe, X-ray. — Stock Photo
    Skeleton foot in high heel shoe, X-ray.
    Archaeological excavations. Archaeologist conducting research on ancient human bones. — Stock Photo
    Archaeological excavations. Archaeologist conducting research on ancient human bones.
    Hand with jewellery, X-ray. — Stock Photo
    Hand with jewellery, X-ray.
    Archaeological excavations. Young archaeologist excavating part of human skeleton and skull from the ground. — Stock Photo
    Archaeological excavations. Young archaeologist excavating part of human skeleton and skull from the ground.
    Player in action kicking a football, X-ray. — Stock Photo
    Player in action kicking a football, X-ray.
    Hands with wedding ring on left hand, X-ray. — Stock Photo
    Hands with wedding ring on left hand, X-ray.
    Archaeological excavations. Human skeleton remains found in an ancient tomb. — Stock Photo
    Archaeological excavations. Human skeleton remains found in an ancient tomb.
    Archaeology. Excavation of human remains from an ancient burial site. — Stock Photo
    Archaeology. Excavation of human remains from an ancient burial site.
    Skeleton lower leg in brogue footwear walking, X-ray. — Stock Photo
    Skeleton lower leg in brogue footwear walking, X-ray.
    Person smoking, coloured X-ray. — Stock Photo
    Person smoking, coloured X-ray.
    Whatever hands gesture, X-ray. — Stock Photo
    Whatever hands gesture, X-ray.
    Archaeological excavations. Human skeleton remains found in an ancient tomb. — Stock Photo
    Archaeological excavations. Human skeleton remains found in an ancient tomb.
    Archaeology. Excavation of human remains from an ancient burial site. — Stock Photo
    Archaeology. Excavation of human remains from an ancient burial site.
    Broken arm, X-ray. — Stock Photo
    Broken arm, X-ray.
    Human leg and stiletto shoe, X-ray. — Stock Photo
    Human leg and stiletto shoe, X-ray.
    Archaeologist excavating ancient human remains at an archaeological site. — Stock Photo
    Archaeologist excavating ancient human remains at an archaeological site.
    Driver with driving helmet, X-ray — Stock Photo
    Driver with driving helmet, X-ray
    Skull and helmet, X-ray. — Stock Photo
    Skull and helmet, X-ray.
    Human skull, X-ray. — Stock Photo
    Human skull, X-ray.
    Archaeological excavations. Human skeleton remains found in an ancient tomb. — Stock Photo
    Archaeological excavations. Human skeleton remains found in an ancient tomb.
    Player in action kicking a football, X-ray. — Stock Photo
    Player in action kicking a football, X-ray.
    Archaeologist excavating ancient human remains at an archaeological site. — Stock Photo
    Archaeologist excavating ancient human remains at an archaeological site.
    Skeleton holding champagne and two glasses, X-ray. — Stock Photo
    Skeleton holding champagne and two glasses, X-ray.
    Human heart and its electrical system, 3d illustration. The yellow lines demonstrate the electrical (conduction) system of the heart. The heart at right shows an irregular heartbeat (arrhythmia) and atrial fibrillation. — Stock Photo
    Human heart and its electrical system, 3d illustration. The yellow lines demonstrate the electrical (conduction) system of the heart. The heart at right shows an irregular heartbeat (arrhythmia) and atrial fibrillation.
    Skull and helmet, X-ray. — Stock Photo
    Skull and helmet, X-ray.
    Human heart circulatory and electrical system, 3d illustration. Cross section of the heart showing the ventricles and valves, and the electrical (conduction) system (yellow lines) and circulatory system (red and blue lines). — Stock Photo
    Human heart circulatory and electrical system, 3d illustration. Cross section of the heart showing the ventricles and valves, and the electrical (conduction) system (yellow lines) and circulatory system (red and blue lines).