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    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Vascular system of female upper body, computer illustration. — Stock Photo
    Vascular system of female upper body, computer illustration.
    Illustration of human lung in body silhouette. — Stock Photo
    Illustration of human lung in body silhouette.
    3d rendered illustration of cyclist lungs anatomy on black background. — Stock Photo
    3d rendered illustration of cyclist lungs anatomy on black background.
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria.
    Yellow colored bronchi in body of woman, computer illustration. — Stock Photo
    Yellow colored bronchi in body of woman, computer illustration.
    Illustration of female silhouette with highlighted lungs. — Stock Photo
    Illustration of female silhouette with highlighted lungs.
    Illustration of male office worker vascular system. — Stock Photo
    Illustration of male office worker vascular system.
    3d rendered illustration of human heart. — Stock Photo
    3d rendered illustration of human heart.
    Man holding a heart, computer illustration. — Stock Photo
    Man holding a heart, computer illustration.
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Illustration of human lungs and bronchi. — Stock Photo
    Illustration of human lungs and bronchi.
    Illustration of transparent blue silhouette of male body with colored heart. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored heart.
    Heart anatomy in male thorax, computer illustration. — Stock Photo
    Heart anatomy in male thorax, computer illustration.
    Digital illustration of senior man anatomy showing lungs. — Stock Photo
    Digital illustration of senior man anatomy showing lungs.
    Illustration of female silhouette with painful heart. — Stock Photo
    Illustration of female silhouette with painful heart.
    Diseased lungs in transparent male body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on black background, computer illustration.
    Illustration of lungs with close-up with infection in male body silhouette on black background. — Stock Photo
    Illustration of lungs with close-up with infection in male body silhouette on black background.
    Comparison of healthy and smoker lungs, digital illustration. — Stock Photo
    Comparison of healthy and smoker lungs, digital illustration.
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient. — Stock Photo
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient.
    Human heart with disease, computer illustration. — Stock Photo
    Human heart with disease, computer illustration.
    Illustration of visible colored lungs in transparent human body silhouette. — Stock Photo
    Illustration of visible colored lungs in transparent human body silhouette.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Transparent male silhouette with colored bronchi, computer illustration. — Stock Photo
    Transparent male silhouette with colored bronchi, computer illustration.
    Illustration of Streptococcus pneumoniae bacteria inside alveoli of lungs causing pneumonia. — Stock Photo
    Illustration of Streptococcus pneumoniae bacteria inside alveoli of lungs causing pneumonia.
    Illustration of transparent blue silhouette of male body with colored lungs. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored lungs.
    3d rendered illustration of colored female bronchi in body silhouette. — Stock Photo
    3d rendered illustration of colored female bronchi in body silhouette.
    Digital illustration of elderly man body with visible orange-colored heart. — Stock Photo
    Digital illustration of elderly man body with visible orange-colored heart.
    Illustration of Staphylococcus aureus bacteria inside alveoli of lungs causing pneumonia. — Stock Photo
    Illustration of Staphylococcus aureus bacteria inside alveoli of lungs causing pneumonia.
    Yellow colored bronchi in body of woman, computer illustration. — Stock Photo
    Yellow colored bronchi in body of woman, computer illustration.
    Abstract male silhouette with lung cancer, digital illustration. — Stock Photo
    Abstract male silhouette with lung cancer, digital illustration.
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Cardiovascular system with emphasis on heart — Stock Photo
    Cardiovascular system with emphasis on heart
    Female body with visible vascular system, digital illustration. — Stock Photo
    Female body with visible vascular system, digital illustration.
    Cardiovascular system in normal male body, computer illustration. — Stock Photo
    Cardiovascular system in normal male body, computer illustration.
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Human heart with colored mitral valve, computer illustration. — Stock Photo
    Human heart with colored mitral valve, computer illustration.
    Illustration of lungs in male body silhouette. — Stock Photo
    Illustration of lungs in male body silhouette.
    Coronary blood vessels in blue human heart model, digital illustration. — Stock Photo
    Coronary blood vessels in blue human heart model, digital illustration.
    Illustration of senior woman silhouette with colored heart on black background. — Stock Photo
    Illustration of senior woman silhouette with colored heart on black background.
    Female body with visible cardiovascular system, digital illustration — Stock Photo
    Female body with visible cardiovascular system, digital illustration
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    Heart anatomy in male thorax, computer illustration. — Stock Photo
    Heart anatomy in male thorax, computer illustration.
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles. — Stock Photo
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles.
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Illustration of human silhouette with painful heart. — Stock Photo
    Illustration of human silhouette with painful heart.
    Human heart anatomy showing mitral valve, digital illustration. — Stock Photo
    Human heart anatomy showing mitral valve, digital illustration.
    Human Bronchi, computer illustration — Stock Photo
    Human Bronchi, computer 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.
    Digital illustration of rod-shaped bacteria inside alveoli of lungs causing pneumonia. — Stock Photo
    Digital illustration of rod-shaped bacteria inside alveoli of lungs causing pneumonia.
    Orange colored lungs in female body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in female body silhouette, computer illustration.
    Female heart and vascular system, digital illustration. — Stock Photo
    Female heart and vascular system, digital illustration.
    Illustration of human heart anatomy on white background. — Stock Photo
    Illustration of human heart anatomy on white background.
    Healthy heart anatomy — Stock Photo
    Healthy heart anatomy
    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.