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    The ceiling of a large building, with air ducts and pipes, the rafters, gantry and struts, sound system speakers, lights and extractor units. — Stock Photo
    The ceiling of a large building, with air ducts and pipes, the rafters, gantry and struts, sound system speakers, lights and extractor units.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    Esophageal cancer in male body, abstract digital illustration. — Stock Photo
    Esophageal cancer in male body, abstract digital illustration.
    Facade of factory with plasterboard walls and exit with modern glass door — Stock Photo
    Facade of factory with plasterboard walls and exit with modern glass door
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Stomach cancer in female body, conceptual computer illustration. — Stock Photo
    Stomach cancer in female body, conceptual computer illustration.
    Malignant tumor in a woman breast — Stock Photo
    Malignant tumor in a woman breast
    Disabled man in wheelchair looking through window at home — Stock Photo
    Disabled man in wheelchair looking through window at home
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    Illustration of human skeleton painful spine. — Stock Photo
    Illustration of human skeleton painful spine.
    3d rendered illustration of blue silhouette of male legs with painful calf on black background. — Stock Photo
    3d rendered illustration of blue silhouette of male legs with painful calf on black background.
    Green temperate forest — Stock Photo
    Green temperate forest
    Portrait of an engineer on a construction site, Thailand — Stock Photo
    Portrait of an engineer on a construction site, Thailand
    Electrician installing an air conditioning unit on a wall, Thailand — Stock Photo
    Electrician installing an air conditioning unit on a wall, Thailand
    Gonorrhoea infection causing by bacteria Neisseria gonorrhoeae in male organ while urethritis, digital illustration. — Stock Photo
    Gonorrhoea infection causing by bacteria Neisseria gonorrhoeae in male organ while urethritis, digital illustration.
    3D illustration of coronaviruses. — Stock Photo
    3D illustration of coronaviruses.
    CUBA - AUGUST 27, 2016: Woman looking out of window behind bars in old shabby house. — Stock Photo
    CUBA - AUGUST 27, 2016: Woman looking out of window behind bars in old shabby house.
    Toilet seat microbes, conceptual digital illustration. — Stock Photo
    Toilet seat microbes, conceptual digital illustration.
    Scenic view of remnants of a pier in fog — Stock Photo
    Scenic view of remnants of a pier in fog
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    3d illustration of Salmonella sp. bacteria showing internal structure — Stock Photo
    3d illustration of Salmonella sp. bacteria showing internal structure
    Close-up view of delicious healthy dried figs in bowl on wooden table — Stock Photo
    Close-up view of delicious healthy dried figs in bowl on wooden table
    Illustration of illuminated red human cancer cell. — Stock Photo
    Illustration of illuminated red human cancer cell.
    Digital illustration of human leg affected by lymphatic filariasis and close-up of parasitic nematode worms. — Stock Photo
    Digital illustration of human leg affected by lymphatic filariasis and close-up of parasitic nematode worms.
    Man standing on top of vehicle parked on the Makadikadi Salt Pans in Botswana. — Stock Photo
    Man standing on top of vehicle parked on the Makadikadi Salt Pans in Botswana.
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Illustration of red and inflamed human appendix and close-up of bacteria causative agents of appendicitis. — Stock Photo
    Illustration of red and inflamed human appendix and close-up of bacteria causative agents of appendicitis.
    Disabled man closing the door of his home — Stock Photo
    Disabled man closing the door of his home
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    Illustration of cancerous tumour in female small intestine. — Stock Photo
    Illustration of cancerous tumour in female small intestine.
    Plasmodium ovale protozoan, digital illustration. — Stock Photo
    Plasmodium ovale protozoan, digital illustration.
    Cancer cell anatomy — Stock Photo
    Cancer cell anatomy
    Brain infection, conceptual illustration. — Stock Photo
    Brain infection, conceptual illustration.
    Esophageal cancer in male body, abstract digital illustration. — Stock Photo
    Esophageal cancer in male body, abstract digital illustration.
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Covid-19 coronavirus spike protein (pink and red), computer illustration — Stock Photo
    Covid-19 coronavirus spike protein (pink and red), computer illustration
    Digital artwork of human cell with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cell with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Back view of woman walking between green plants and bushes inside of old greenhouse with high ceiling and arched window, Scotland — Stock Photo
    Back view of woman walking between green plants and bushes inside of old greenhouse with high ceiling and arched window, Scotland
    3d rendered illustration of little tick on skin surface. — Stock Photo
    3d rendered illustration of little tick on skin surface.
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Multi-colored Easter eggs over fabric, closeup — Stock Photo
    Multi-colored Easter eggs over fabric, closeup
    Handicapped man on wheelchair exercising with battle ropes in gym — Stock Photo
    Handicapped man on wheelchair exercising with battle ropes in gym
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Two girl against blue sky — Stock Photo
    Two girl against blue sky
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia. — Stock Photo
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia.
    Plasmodium falciparum protozoan inside red blood cells, computer illustration — Stock Photo
    Plasmodium falciparum protozoan inside red blood cells, computer illustration
    Stomach cancer cell, computer illustration — Stock Photo
    Stomach cancer cell, computer illustration
    Portrait of a mature woman wearing spectacles — Stock Photo
    Portrait of a mature woman wearing spectacles
    Tumour growth, computer illustration — Stock Photo
    Tumour growth, computer illustration
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract — Stock Photo
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract
    Dementia, conceptual computer illustration — Stock Photo
    Dementia, conceptual computer illustration
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph