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    Illustration of silhouette of obese man with visible lungs. — Stock Photo
    Illustration of silhouette of obese man with visible lungs.
    Transparent male silhouette with visible bronchi, computer illustration. — Stock Photo
    Transparent male silhouette with visible bronchi, computer illustration.
    3d rendered illustration of blue silhouette of man with chest pain on black background. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain on black background.
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Close-up illustration of trachea in male body silhouette, close-up. — Stock Photo
    Close-up illustration of trachea in male body silhouette, close-up.
    Illustration of human heart anatomy on blue background. — Stock Photo
    Illustration of human heart anatomy on blue background.
    Digital illustration of senior man anatomy showing lungs. — Stock Photo
    Digital illustration of senior man anatomy showing lungs.
    Illustration of female silhouette with inflamed heart. — Stock Photo
    Illustration of female silhouette with inflamed heart.
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Illustration of heart in transparent male silhouette. — Stock Photo
    Illustration of heart in transparent male silhouette.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Orange colored lungs in female body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in female body silhouette, computer illustration.
    Digital anatomical illustration of arteries and veins in body of senior man. — Stock Photo
    Digital anatomical illustration of arteries and veins in body of senior man.
    Illustration of visible colored lungs in transparent human body silhouette. — Stock Photo
    Illustration of visible colored lungs in transparent human body silhouette.
    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.
    Illustration of bronchi in male body silhouette. — Stock Photo
    Illustration of bronchi in male body silhouette.
    Medical illustration of female circulatory system with heart — Stock Photo
    Medical illustration of female circulatory system with heart
    3d rendered illustration of biker heart on black background. — Stock Photo
    3d rendered illustration of biker heart on black background.
    Asthmatic boy using inhaler, close-up. — Stock Photo
    Asthmatic boy using inhaler, close-up.
    Illustration of visible lungs in transparent human body silhouette. — Stock Photo
    Illustration of visible lungs in transparent human body silhouette.
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Lung cancer pathology — Stock Photo
    Lung cancer pathology
    Illustration of human heart on black background. — Stock Photo
    Illustration of human heart on black background.
    Illustration of realistic human heart with bypass. — Stock Photo
    Illustration of realistic human heart with bypass.
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, 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.
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration. — Stock Photo
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration.
    Medical illustration of muscle parts, axial skeleton, veins and nerves — Stock Photo
    Medical illustration of muscle parts, axial skeleton, veins and nerves
    Male body with visible vascular system, computer illustration. — Stock Photo
    Male body with visible vascular system, computer illustration.
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    Human heart with colored pulmonary valve, computer illustration. — Stock Photo
    Human heart with colored pulmonary valve, computer illustration.
    Heart of glass anatomy — Stock Photo
    Heart of glass anatomy
    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.
    3d rendered illustration of human heart. — Stock Photo
    3d rendered illustration of human heart.
    Human heart with colored right ventricle, computer illustration. — Stock Photo
    Human heart with colored right ventricle, 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.
    Illustration of cancerous tumour in female lung. — Stock Photo
    Illustration of cancerous tumour in female lung.
    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital illustration.
    Pulmonary edema, digital illustration. — Stock Photo
    Pulmonary edema, digital illustration.
    Human silhouette with detailed lungs, digital illustration. — Stock Photo
    Human silhouette with detailed lungs, digital illustration.
    Male pediatrician showing girl patient how to use inhaler in doctors office — Stock Photo
    Male pediatrician showing girl patient how to use inhaler in doctors office
    Female upper body blood vessels, digital illustration. — Stock Photo
    Female upper body blood vessels, digital illustration.
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Illustration of transparent blue silhouette of male body with colored heart. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored heart.
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems
    Vascular system of neck in male body, computer illustration. — Stock Photo
    Vascular system of neck in male body, 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.
    Illustration of transparent gray silhouette of male body with colored lungs. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored lungs.
    Digital illustration of human alveoli on white background. — Stock Photo
    Digital illustration of human alveoli on white background.
    3d rendered illustration of blue silhouette of man with inflamed lungs on black background. — Stock Photo
    3d rendered illustration of blue silhouette of man with inflamed lungs on black background.
    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 Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis (TB). The disease affects the lungs and sometimes other parts of the body — Stock Photo
    Illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis (TB). The disease affects the lungs and sometimes other parts of the body
    Human heart anatomy with annotations — Stock Photo
    Human heart anatomy with annotations
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph.
    Chest, neck and head arteries — Stock Photo
    Chest, neck and head arteries
    Human heart with colored pulmonary valve, computer illustration. — Stock Photo
    Human heart with colored pulmonary valve, computer illustration.