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    Diseased gallbladder, computer illustration — Stock Photo
    Diseased gallbladder, computer illustration
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Human brain, computer illustration — Stock Photo
    Human brain, computer illustration
    Farmer and his buffalo ploughing a paddy field, Thailand — Stock Photo
    Farmer and his buffalo ploughing a paddy field, Thailand
    Human kidneys, computer illustration — Stock Photo
    Human kidneys, computer illustration
    Human brain, computer illustration — Stock Photo
    Human brain, computer illustration
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria — Stock Photo
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria — Stock Photo
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Portrait of a smiling woman with pearls on her face — Stock Photo
    Portrait of a smiling woman with pearls on her face
    Woman holding corn on the cob — Stock Photo
    Woman holding corn on the cob
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Young ethnic female in traditional wear showing title on cardboard placard while sitting on lawn and looking at camera — Stock Photo
    Young ethnic female in traditional wear showing title on cardboard placard while sitting on lawn and looking at camera
    Portrait of a sad woman in black and gold body paint — Stock Photo
    Portrait of a sad woman in black and gold body paint
    Portrait of a woman with pearls on her face — Stock Photo
    Portrait of a woman with pearls on her face
    Portrait of a beautiful woman isolated on black — Stock Photo
    Portrait of a beautiful woman isolated on black
    Human kidneys, computer illustration — Stock Photo
    Human kidneys, computer illustration
    Parathyroid glands, computer illustration — Stock Photo
    Parathyroid glands, computer illustration
    Conceptual human lungs with coffee beans — Stock Photo
    Conceptual human lungs with coffee beans
    Man holding a bison skull in front of his head — Stock Photo
    Man holding a bison skull in front of his head
    Woman rubbing cream on her arm — Stock Photo
    Woman rubbing cream on her arm
    Human Pancreas, computer illustration — Stock Photo
    Human Pancreas, computer illustration
    Man with backache due to sitting, computer illustration — Stock Photo
    Man with backache due to sitting, computer illustration
    Human larynx, computer illustration — Stock Photo
    Human larynx, computer illustration
    Farmer preparing his plough, Thailand — Stock Photo
    Farmer preparing his plough, Thailand
    Parathyroid glands, computer illustration — Stock Photo
    Parathyroid glands, computer illustration
    Human Pancreas, computer illustration — Stock Photo
    Human Pancreas, computer illustration
    Parathyroid glands, computer illustration — Stock Photo
    Parathyroid glands, computer illustration
    Woman rubbing cream on her arm — Stock Photo
    Woman rubbing cream on her arm
    Hands holding fresh vine tomatoes outdoor — Stock Photo
    Hands holding fresh vine tomatoes outdoor
    Gallbladder and other organs, computer illustration — Stock Photo
    Gallbladder and other organs, computer illustration
    Woman serving fresh salad — Stock Photo
    Woman serving fresh salad
    Human Pancreas, computer illustration — Stock Photo
    Human Pancreas, computer illustration
    Human larynx, computer illustration — Stock Photo
    Human larynx, computer illustration
    Crop hand of hiding person touching corner of colorful wall — Stock Photo
    Crop hand of hiding person touching corner of colorful wall
    Cervical spine, computer illustration — Stock Photo
    Cervical spine, computer illustration
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red). — Stock Photo
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red).
    Female hands holding ceramic tableware and cutlery — Stock Photo
    Female hands holding ceramic tableware and cutlery
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria — Stock Photo
    Boy standing in Atanasovsko Lake putting mud on his face, Burgas, Bulgaria
    Stomach lining. Coloured light micrograph (LM) of the stomach. The lumen is at top (white). The surface of the mucosa consists of simple columnar cells that secrete mucus — Stock Photo
    Stomach lining. Coloured light micrograph (LM) of the stomach. The lumen is at top (white). The surface of the mucosa consists of simple columnar cells that secrete mucus
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    Salivary gland. Light micrograph (LM) of a sectioned gland. The submandibular glands (also called sublingual) are bilateral salivary glands located in the face — Stock Photo
    Salivary gland. Light micrograph (LM) of a sectioned gland. The submandibular glands (also called sublingual) are bilateral salivary glands located in the face
    Farmer and his buffalo ploughing a paddy field, Thailand — Stock Photo
    Farmer and his buffalo ploughing a paddy field, Thailand
    Cross-section of spinal cord, light micrograph. — Stock Photo
    Cross-section of spinal cord, light micrograph.
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture. — Stock Photo
    Anatomy of warrior 1 pose, or virabhadrasana 1. Computer illustration showing a male body with highlighted skeleton demonstrating the skeletal activity of this yoga posture.
    Illustration of the human brain with highlighted superior frontal gyri, also known as marginal gyri. It is located in the frontal lobe and is associated with self-awareness and laughter. — Stock Photo
    Illustration of the human brain with highlighted superior frontal gyri, also known as marginal gyri. It is located in the frontal lobe and is associated with self-awareness and laughter.
    Human torso with internal organs, illustration. — Stock Photo
    Human torso with internal organs, illustration.
    Human brain with highlighted superior temporal gyrus, illustration. It is involved in processing auditory information and encoding of memory. — Stock Photo
    Human brain with highlighted superior temporal gyrus, illustration. It is involved in processing auditory information and encoding of memory.
    Human brain with highlighted middle temporal gyrus, computer illustration. It is located in the temporal lobe and is involved in recognition of known faces and accessing word meaning while reading. — Stock Photo
    Human brain with highlighted middle temporal gyrus, computer illustration. It is located in the temporal lobe and is involved in recognition of known faces and accessing word meaning while reading.
    Boy standing in Atanasovsko Lake with mud on his face, Burgas, Bulgaria — Stock Photo
    Boy standing in Atanasovsko Lake with mud on his face, Burgas, Bulgaria
    Conceptual illustration of red blood cells (erythrocytes) with oxygen molecules (white) in an artery. — Stock Photo
    Conceptual illustration of red blood cells (erythrocytes) with oxygen molecules (white) in an artery.
    Illustration of the connection between the brain and stomach. — Stock Photo
    Illustration of the connection between the brain and stomach.
    Human brain with highlighted precentral gyrus, computer illustration. It is located in the posterior frontal lobe and is the site of the primary motor cortex, the Brodmann area 4. — Stock Photo
    Human brain with highlighted precentral gyrus, computer illustration. It is located in the posterior frontal lobe and is the site of the primary motor cortex, the Brodmann area 4.
    Human brain with highlighted middle frontal gyrus, computer illustration. It is part of the prefrontal cortex of the frontal lobe. It is involved in language, learning and attention. — Stock Photo
    Human brain with highlighted middle frontal gyrus, computer illustration. It is part of the prefrontal cortex of the frontal lobe. It is involved in language, learning and attention.
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible. — Stock Photo
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible.
    Human brain with highlighted inferior frontal gyrus, computer illustration. It is a part of the prefrontal cortex and the location of Broca's area, which is involved in language processing and speech production. — Stock Photo
    Human brain with highlighted inferior frontal gyrus, computer illustration. It is a part of the prefrontal cortex and the location of Broca's area, which is involved in language processing and speech production.
    Illustration of the skeleton of a person in the tree pose, or Vrikshasana. — Stock Photo
    Illustration of the skeleton of a person in the tree pose, or Vrikshasana.