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    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Caenorhabditis elegans parasite worm, colored scanning electron micrograph. — Stock Photo
    Caenorhabditis elegans parasite worm, colored scanning electron micrograph.
    Human stomach mucinous adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach mucinous adenocarcinoma, computer illustration and light micrograph.
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Liver tissue, light micrograph. Animal tissue. — Stock Photo
    Liver tissue, light micrograph. Animal tissue.
    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.
    Coloured scanning electron micrograph (SEM) of a freeze fracture of the vagina showing the stratified squamous epithelium and the underlying lamina propria — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze fracture of the vagina showing the stratified squamous epithelium and the underlying lamina propria
    Blood clot or thrombus — Stock Photo
    Blood clot or thrombus
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Coloured scanning electron micrograph (SEM) of Cotton t-shirt collar with dirt, dead skin, etc. embedded in fibres. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Cotton t-shirt collar with dirt, dead skin, etc. embedded in fibres.
    Lime tree stem — Stock Photo
    Lime tree stem
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface. — Stock Photo
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface.
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    House dust mites — Stock Photo
    House dust mites
    Escherichia coli bacteria on gecko tongue — Stock Photo
    Escherichia coli bacteria on gecko tongue
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Scanning electron micrograph of head of pork tapeworm intestinal parasite. — Stock Photo
    Scanning electron micrograph of head of pork tapeworm intestinal parasite.
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Iris stem cellular structure — Stock Photo
    Iris stem cellular structure
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth. — Stock Photo
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth.
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms. — Stock Photo
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms.
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    Odontoblasts and the dental pulp — Stock Photo
    Odontoblasts and the dental pulp
    Fibroblast cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Fibroblast cell, coloured scanning electron micrograph (SEM).
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva — Stock Photo
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva
    Digital illustration of nerve neurons cells. — Stock Photo
    Digital illustration of nerve neurons cells.
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower.
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen.
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times — Stock Photo
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Dental floss with cheek cells — Stock Photo
    Dental floss with cheek cells
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum — Stock Photo
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM). — Stock Photo
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph of cancer cell from human colon. — Stock Photo
    Coloured scanning electron micrograph of cancer cell from human colon.
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Light micrograph of an artery vascular cross section. — Stock Photo
    Light micrograph of an artery vascular cross section.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Longitudinal section through smooth muscle — Stock Photo
    Longitudinal section through smooth muscle