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    Illustration of human heart on black background. — Stock Photo
    Illustration of human heart on black background.
    Human heart anatomy showing valves, cross section illustration. — Stock Photo
    Human heart anatomy showing valves, cross section illustration.
    Female body with visible vascular system, computer illustration. — Stock Photo
    Female body with visible vascular system, computer illustration.
    Illustration of transparent gray silhouette of male body with colored heart. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored heart.
    Digital illustration of senior man anatomy showing lung tumour. — Stock Photo
    Digital illustration of senior man anatomy showing lung tumour.
    Grey human heart model on white background, computer illustration. — Stock Photo
    Grey human heart model on white background, computer illustration.
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria.
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration. — Stock Photo
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration.
    Illustration of bronchi in male body silhouette. — Stock Photo
    Illustration of bronchi in male body silhouette.
    Tuberculosis bacteria, 3d illustration. — Stock Photo
    Tuberculosis bacteria, 3d illustration.
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage. — Stock Photo
    Coloured chest X-ray showing aspiration (dark areas) in the lungs of a 76-year-old female patient with an extensive brain haemorrhage.
    Illustration of visible colored lungs in transparent human body silhouette. — Stock Photo
    Illustration of visible colored lungs in transparent human body silhouette.
    Tuberculosis bacteria, 3d illustration. — Stock Photo
    Tuberculosis bacteria, 3d illustration.
    Female body with visible vascular system, computer illustration. — Stock Photo
    Female body with visible vascular system, computer illustration.
    Digital illustration of senior man anatomy showing lungs. — Stock Photo
    Digital illustration of senior man anatomy showing lungs.
    Illustration on black of silhouette of obese woman with highlighted lungs. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted lungs.
    Human silhouette with detailed lungs, digital illustration. — Stock Photo
    Human silhouette with detailed lungs, digital illustration.
    Illustration of transparent gray silhouette of male body with colored bronchi. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored bronchi.
    Close-up illustration of trachea in male body silhouette, close-up. — Stock Photo
    Close-up illustration of trachea in male body silhouette, close-up.
    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital illustration.
    Alveoli structure and blood supply — Stock Photo
    Alveoli structure and blood supply
    Human heart with colored superior vena cava, computer illustration. — Stock Photo
    Human heart with colored superior vena cava, computer illustration.
    Male pediatrician teaching girl patient how to use inhaler in doctors office — Stock Photo
    Male pediatrician teaching girl patient how to use inhaler in doctors office
    Illustration of bypass in human heart. — Stock Photo
    Illustration of bypass in human heart.
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Illustration of silhouette of obese man with visible heart. — Stock Photo
    Illustration of silhouette of obese man with visible heart.
    Vascular system of female upper body, computer illustration. — Stock Photo
    Vascular system of female upper body, computer illustration.
    Transparent male silhouette with colored lungs, computer illustration. — Stock Photo
    Transparent male silhouette with colored lungs, computer illustration.
    Pulmonary edema, digital illustration. — Stock Photo
    Pulmonary edema, digital illustration.
    Illustration of senior woman silhouette showing lungs on black background. — Stock Photo
    Illustration of senior woman silhouette showing lungs on black background.
    Female body with visible heart and cardiovascular system, digital illustration. — Stock Photo
    Female body with visible heart and cardiovascular system, digital illustration.
    Blood clot, computer illustration — Stock Photo
    Blood clot, computer illustration
    Female body with visible heart, computer illustration. — Stock Photo
    Female body with visible heart, computer illustration.
    Abstract male body with visible lymphatic system and heart, computer illustration. — Stock Photo
    Abstract male body with visible lymphatic system and heart, computer illustration.
    Female abdominal vascular system, computer illustration. — Stock Photo
    Female abdominal vascular system, computer illustration.
    Conceptual illustration of human heart spiked with syringes. — Stock Photo
    Conceptual illustration of human heart spiked with syringes.
    Illustration of female silhouette with highlighted heart. — Stock Photo
    Illustration of female silhouette with highlighted heart.
    Orange colored lungs in male body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in male body silhouette, computer illustration.
    Illustration of female silhouette with highlighted lungs. — Stock Photo
    Illustration of female silhouette with highlighted lungs.
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Illustration of silhouette of obese man with visible lungs. — Stock Photo
    Illustration of silhouette of obese man with visible lungs.
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Illustration of human lungs in body silhouette. — Stock Photo
    Illustration of human lungs in body silhouette.
    Diseased lungs in transparent female body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent female body on black background, computer illustration.
    Illustration of silhouette of obese man with visible heart. — Stock Photo
    Illustration of silhouette of obese man with visible heart.
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Alternaria fungi on white background, digital illustration. — Stock Photo
    Alternaria fungi on white background, digital illustration.
    Abstract male silhouette with lung cancer, digital illustration. — Stock Photo
    Abstract male silhouette with lung cancer, digital illustration.
    Diseased lungs in transparent female body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent female body on black background, computer illustration.
    Transparent male silhouette with colored lungs, computer illustration. — Stock Photo
    Transparent male silhouette with colored lungs, computer illustration.
    Male head and neck anatomy and blood vessels, computer illustration. — Stock Photo
    Male head and neck anatomy and blood vessels, computer illustration.
    Orange colored lungs in male body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in male body silhouette, computer illustration.
    Vascular system of human head, computer illustration. — Stock Photo
    Vascular system of human head, computer illustration.
    Human heart with disease, computer illustration. — Stock Photo
    Human heart with disease, computer illustration.
    3d rendered illustration of blue silhouette of man with chest pain. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain.
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Male upper body anatomy and blood vessels, computer illustration. — Stock Photo
    Male upper body anatomy and blood vessels, computer illustration.