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    Diseased lungs in transparent female body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent female body on black background, computer illustration.
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia. — Stock Photo
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia.
    Digital illustration of Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia. — Stock Photo
    Digital illustration of Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia.
    Illustration of figure of obese man with visible lungs. — Stock Photo
    Illustration of figure of obese man with visible lungs.
    3d anatomical model demonstrating female anatomy in rear view, computer illustration. — Stock Photo
    3d anatomical model demonstrating female anatomy in rear view, computer illustration.
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    Illustration of transparent blue silhouette of male body with colored lungs. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored lungs.
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration. — Stock Photo
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Illustration of human silhouette with inflamed colon. — Stock Photo
    Illustration of human silhouette with inflamed colon.
    Human body model showing female anatomy with internal organs in rear view, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs in rear view, digital 3d render illustration.
    Lung cancer in female transparent body, conceptual computer illustration. — Stock Photo
    Lung cancer in female transparent body, conceptual computer illustration.
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa. — Stock Photo
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa.
    Stomach lining structure, computer illustration. — Stock Photo
    Stomach lining structure, computer illustration.
    Three dimensional view of the female respiratory system — Stock Photo
    Three dimensional view of the female respiratory system
    Transparent male silhouette with visible large intestine, computer illustration. — Stock Photo
    Transparent male silhouette with visible large intestine, computer illustration.
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    Male muscle anatomy of the human legs — Stock Photo
    Male muscle anatomy of the human legs
    Visible ureter in abstract female body, computer illustration. — Stock Photo
    Visible ureter in abstract female body, computer illustration.
    Illustration on black of silhouette of obese woman with highlighted lungs. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted lungs.
    Rendering of gastric ulcer — Stock Photo
    Rendering of gastric ulcer
    Transparent male silhouette with colored lungs, computer illustration. — Stock Photo
    Transparent male silhouette with colored lungs, computer illustration.
    Enterobius vermicularis threadworm eggs containing worm larvae, causative agent of enterobiasis, computer illustration. — Stock Photo
    Enterobius vermicularis threadworm eggs containing worm larvae, causative agent of enterobiasis, computer illustration.
    Illustration of senior woman blue silhouette with highlighted lungs on black background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted lungs on black background.
    Red colored lungs in female body silhouette on blue background, digital illustration. — Stock Photo
    Red colored lungs in female body silhouette on blue background, digital illustration.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    3d rendered illustration of colored female lungs in body silhouette. — Stock Photo
    3d rendered illustration of colored female lungs in body silhouette.
    Medical illustration of the liver and stomach — Stock Photo
    Medical illustration of the liver and stomach
    Digital illustration of senior man anatomy showing digestive system tumour. — Stock Photo
    Digital illustration of senior man anatomy showing digestive system tumour.
    Red colored lungs in female body silhouette on blue background, digital illustration. — Stock Photo
    Red colored lungs in female body silhouette on blue background, digital illustration.
    Female body with colon cancer, conceptual digital illustration. — Stock Photo
    Female body with colon cancer, conceptual digital illustration.
    Coloured scanning electron micrograph (SEM) of a fractured bile duct. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a fractured bile duct.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Realistic body model showing female anatomy on blue background, computer illustration. — Stock Photo
    Realistic body model showing female anatomy on blue background, computer illustration.
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Female anatomical transparent 3d model showing bladder, computer illustration. — Stock Photo
    Female anatomical transparent 3d model showing bladder, computer illustration.
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    Digital illustration of intestinal villi in digestive system. — Stock Photo
    Digital illustration of intestinal villi in digestive system.
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Illustration of colon in transparent male silhouette. — Stock Photo
    Illustration of colon in transparent male silhouette.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    3d rendered illustration of colored female bronchi in body silhouette. — Stock Photo
    3d rendered illustration of colored female bronchi in body silhouette.
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    Illustration of senior man silhouette with visible colon. — Stock Photo
    Illustration of senior man silhouette with visible colon.
    Illustration of transparent blue silhouette of male body with colored colon. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored colon.
    Human digestive system microbiota, 3d illustration. — Stock Photo
    Human digestive system microbiota, 3d illustration.
    Healthy state of large intestines — Stock Photo
    Healthy state of large intestines
    Colon lining and mucous producing cells — Stock Photo
    Colon lining and mucous producing cells
    Illustration of senior man silhouette with visible lungs. — Stock Photo
    Illustration of senior man silhouette with visible lungs.
    Medical illustration of visible bronchi in human body. — Stock Photo
    Medical illustration of visible bronchi in human body.
    Digital illustration of capsids of polyoma BK virus. — Stock Photo
    Digital illustration of capsids of polyoma BK virus.
    Illustration of visible lungs in transparent human body silhouette. — Stock Photo
    Illustration of visible lungs in transparent human body silhouette.
    Digital illustration of ureters in senior man body. — Stock Photo
    Digital illustration of ureters in senior man body.
    Digital illustration of transparent elderly man body with visible orange-colored ureters. — Stock Photo
    Digital illustration of transparent elderly man body with visible orange-colored ureters.
    3d illustration of a Salmonella sp. bacterium showing internal structure — Stock Photo
    3d illustration of a Salmonella sp. bacterium showing internal structure