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    Illustration of female silhouette with highlighted lungs. — Stock Photo
    Illustration of female silhouette with highlighted lungs.
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Illustration of transparent blue silhouette of male body with colored colon. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored colon.
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    Digestive tract and internal organs — Stock Photo
    Digestive tract and internal organs
    Illustration of transparent blue silhouette of male body with colored lung tumour. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored lung tumour.
    Illustration of transparent blue silhouette of male body with colored bronchi. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored bronchi.
    Illustration of senior man silhouette with visible organs. — Stock Photo
    Illustration of senior man silhouette with visible organs.
    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 colon in silhouette of female body. — Stock Photo
    Illustration of colon in silhouette of female body.
    Illustration of lungs in male body silhouette on white background. — Stock Photo
    Illustration of lungs in male body silhouette on white background.
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration. — Stock Photo
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Tapeworm in human intestine — Stock Photo
    Tapeworm in human intestine
    Bladder cancer in human body silhouette, conceptual digital illustration. — Stock Photo
    Bladder cancer in human body silhouette, conceptual digital illustration.
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration. — Stock Photo
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration.
    Digital illustration of senior man anatomy showing lungs. — Stock Photo
    Digital illustration of senior man anatomy showing lungs.
    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.
    Transparent male silhouette with visible urinary bladder, computer illustration. — Stock Photo
    Transparent male silhouette with visible urinary bladder, computer illustration.
    3d rendered illustration of colored female colon in body silhouette. — Stock Photo
    3d rendered illustration of colored female colon in body silhouette.
    Moraxella (Branhamella) catarrhalis bacteria, illustration. These are aerobic, gram-negative cocci (spherical bacteria) which are commonly found in the mucous membranes of the respiratory tract of mammals, including humans — Stock Photo
    Moraxella (Branhamella) catarrhalis bacteria, illustration. These are aerobic, gram-negative cocci (spherical bacteria) which are commonly found in the mucous membranes of the respiratory tract of mammals, including humans
    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.
    Illustration of senior woman silhouette with colored lungs on black background. — Stock Photo
    Illustration of senior woman silhouette with colored lungs on black background.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Three dimensional medical illustration of male reproductive system with veins and arteries — Stock Photo
    Three dimensional medical illustration of male reproductive system with veins and arteries
    Digital illustration of senior man anatomy showing lungs. — Stock Photo
    Digital illustration of senior man anatomy showing lungs.
    Visible ureter in abstract female body, computer illustration. — Stock Photo
    Visible ureter in abstract female body, computer illustration.
    Digital illustration of colon in senior man body. — Stock Photo
    Digital illustration of colon in senior man body.
    Illustration on black of silhouette of obese woman with highlighted lungs. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted lungs.
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    3d rendered illustration of lung and bronchi on white background. — Stock Photo
    3d rendered illustration of lung and bronchi on white background.
    Colored lungs in transparent female body on black background, computer illustration. — Stock Photo
    Colored lungs in transparent female body on black background, computer illustration.
    Human Bronchi, computer illustration — Stock Photo
    Human Bronchi, computer illustration
    Female anatomical figure with detailed large intestine, computer illustration. — Stock Photo
    Female anatomical figure with detailed large intestine, computer illustration.
    Female thorax anatomy and mammary glands, digital illustration. — Stock Photo
    Female thorax anatomy and mammary glands, digital illustration.
    Abstract male figure showing colored large intestine, computer illustration. — Stock Photo
    Abstract male figure showing colored large intestine, computer illustration.
    Digital anatomical illustration of gut microbiome with villi. — Stock Photo
    Digital anatomical illustration of gut microbiome with villi.
    Male anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored large intestine, digital illustration.
    3d rendered illustration of colored female bronchi in body silhouette. — Stock Photo
    3d rendered illustration of colored female bronchi in body silhouette.
    Human Colon, computer illustration — Stock Photo
    Human Colon, computer illustration
    Orange colored bladder in male body silhouette, computer illustration. — Stock Photo
    Orange colored bladder in male body silhouette, computer illustration.
    Illustration of figure of obese man with visible lungs. — Stock Photo
    Illustration of figure of obese man with visible lungs.