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    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Stomach surface epithelium, light micrograph (LM). The surface epithelium of the stomach is a simple columnar epithelium formed by tall mucous cells that invaginate to form the gastric pits — Stock Photo
    Stomach surface epithelium, light micrograph (LM). The surface epithelium of the stomach is a simple columnar epithelium formed by tall mucous cells that invaginate to form the gastric pits
    Sick mature woman sneezing into tissue. — Stock Photo
    Sick mature woman sneezing into tissue.
    Chinese senior man consoling woman in hospital — Stock Photo
    Chinese senior man consoling woman in hospital
    Cancer cell, computer illustration. — Stock Photo
    Cancer cell, computer illustration.
    Mid section of a Caucasian woman spending time at home, holding a tissue, looking sick. Lifestyle at home isolating, social distancing in quarantine lockdown during coronavirus covid 19 pandemic. — Stock Photo
    Mid section of a Caucasian woman spending time at home, holding a tissue, looking sick. Lifestyle at home isolating, social distancing in quarantine lockdown during coronavirus covid 19 pandemic.
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant — Stock Photo
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant
    Close up view of blue jeans pants on dark table. — Stock Photo
    Close up view of blue jeans pants on dark table.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    African American senior man sitting by a table, cleaning a smartphone with a tissue, social distancing and self isolation in quarantine lockdown — Stock Photo
    African American senior man sitting by a table, cleaning a smartphone with a tissue, social distancing and self isolation in quarantine lockdown
    Human heart with vessels and cut rib cage on white background. — Stock Photo
    Human heart with vessels and cut rib cage on white background.
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Male physical therapist massaging leg of woman in clinic — Stock Photo
    Male physical therapist massaging leg of woman in clinic
    Female back muscles, low angle view, computer illustration — Stock Photo
    Female back muscles, low angle view, computer illustration
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Shoulder muscles of female body, computer illustration — Stock Photo
    Shoulder muscles of female body, computer illustration
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain. — Stock Photo
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain.
    Illustration of bone osteoporosis on white background. — Stock Photo
    Illustration of bone osteoporosis on white background.
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible — Stock Photo
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible
    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Redcurrants with stem on tissue — Stock Photo
    Redcurrants with stem on tissue
    Female body with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female body with visible outer intercostal muscles, computer illustration.
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Digital illustration of human bone anatomy. — Stock Photo
    Digital illustration of human bone anatomy.
    Abstract green colored cancer cells on tissue, digital illustration. — Stock Photo
    Abstract green colored cancer cells on tissue, digital illustration.
    Orange colored nerve cell on white background, digital illustration. — Stock Photo
    Orange colored nerve cell on white background, digital illustration.
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree. — Stock Photo
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree.
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue. — Stock Photo
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue.
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain.
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Woman pouring green sauce on a salad in cafe — Stock Photo
    Woman pouring green sauce on a salad in cafe
    Skeletal muscle structure — Stock Photo
    Skeletal muscle structure
    Scientist holding multi-well plate with growth medium. — Stock Photo
    Scientist holding multi-well plate with growth medium.
    Surface of the small intestine — Stock Photo
    Surface of the small intestine
    Light micrograph (LM) of a section through the fingertip. — Stock Photo
    Light micrograph (LM) of a section through the fingertip.
    Bean veggie burger — Stock Photo
    Bean veggie burger
    Smooth muscle structure, conceptual computer illustration. — Stock Photo
    Smooth muscle structure, conceptual computer illustration.
    Closeup view of breaded Escalope in a bread roll with Remoulade — Stock Photo
    Closeup view of breaded Escalope in a bread roll with Remoulade
    Rectus abdominis muscle — Stock Photo
    Rectus abdominis muscle
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible — Stock Photo
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible
    Liver tissue, light micrograph. Animal tissue. — Stock Photo
    Liver tissue, light micrograph. Animal tissue.
    Cancer cell, computer illustration. — Stock Photo
    Cancer cell, computer illustration.
    Female neck and back muscles, computer illustration — Stock Photo
    Female neck and back muscles, computer illustration
    Tumour growth, computer illustration — Stock Photo
    Tumour growth, computer illustration
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Lactobacillus bulgaricus bacteria — Stock Photo
    Lactobacillus bulgaricus bacteria
    Visual rendering of Abdominal pain — Stock Photo
    Visual rendering of Abdominal pain
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place. — Stock Photo
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place.
    Human hair with dandruff, coloured scanning electron micrograph (SEM). — Stock Photo
    Human hair with dandruff, coloured scanning electron micrograph (SEM).
    Light micrograph of a section through the liver of a patient with glycogenosis, or glycogen storage disease (GSD). GSD is a rare condition that changes the way the body uses and stores glycogen, a form of sugar or glucose. Haematoxylin and eosin stai — Stock Photo
    Light micrograph of a section through the liver of a patient with glycogenosis, or glycogen storage disease (GSD). GSD is a rare condition that changes the way the body uses and stores glycogen, a form of sugar or glucose. Haematoxylin and eosin stai
    Anatomy of human skin — Stock Photo
    Anatomy of human skin
    Anatomy of human skin — Stock Photo
    Anatomy of human skin
    View of Trapezius muscle — Stock Photo
    View of Trapezius muscle
    Digital artwork of purple cancer cell on tissue surface. — Stock Photo
    Digital artwork of purple cancer cell on tissue surface.
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible. — Stock Photo
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible.
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Visual render of Human skin anatomy — Stock Photo
    Visual render of Human skin anatomy