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    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    Side view of anonymous female practicing yoga with raised arms on boulders against ocean under cloudy sky at sundown — Stock Photo
    Side view of anonymous female practicing yoga with raised arms on boulders against ocean under cloudy sky at sundown
    Calm women and man concentrated on stretching doing high lunge pose on yoga class — Stock Photo
    Calm women and man concentrated on stretching doing high lunge pose on yoga class
    Caucasian and a mixed race sportsmen wearing protective fencing outfit during a fencing training session, taking aim at each other and lunging with their epees. Fencers training at a gym. — Stock Photo
    Caucasian and a mixed race sportsmen wearing protective fencing outfit during a fencing training session, taking aim at each other and lunging with their epees. Fencers training at a gym.
    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.
    Close-up of adenovirus infecting human lungs, digital illustration. — Stock Photo
    Close-up of adenovirus infecting human lungs, digital illustration.
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain.
    Senior woman using spirometer, measuring lung capacity and peak expiratory force. — Stock Photo
    Senior woman using spirometer, measuring lung capacity and peak expiratory force.
    Human thyroid anatomy, computer illustration. — Stock Photo
    Human thyroid anatomy, computer illustration.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Back view of ethnic female leaning back while standing in Ashta Chandrasana pose during yoga practice on sandy coast against ocean — Stock Photo
    Back view of ethnic female leaning back while standing in Ashta Chandrasana pose during yoga practice on sandy coast against ocean
    Full body of slim women standing on mats and doing Ashta Chandrasana pose while practicing yoga on terrace — Stock Photo
    Full body of slim women standing on mats and doing Ashta Chandrasana pose while practicing yoga on terrace
    Focused female athlete doing side lunge exercise and stretching legs while warming up during training on embankment near sea — Stock Photo
    Focused female athlete doing side lunge exercise and stretching legs while warming up during training on embankment near sea
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain.
    Spirometry. Using digital spirometer with smart phone app, testing lungs. — Stock Photo
    Spirometry. Using digital spirometer with smart phone app, testing lungs.
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Caucasian and African American sportswomen wearing protective fencing outfits during a fencing training session, lunging at each other with their epees. Fencers training at gym. — Stock Photo
    Caucasian and African American sportswomen wearing protective fencing outfits during a fencing training session, lunging at each other with their epees. Fencers training at gym.
    Monitoring respiratory illness with digital spirometer. — Stock Photo
    Monitoring respiratory illness with digital spirometer.
    Healthy and Infected bronchus — Stock Photo
    Healthy and Infected bronchus
    Young woman practicing lunges with kettlebell in gym — Stock Photo
    Young woman practicing lunges with kettlebell in gym
    Conceptual human lungs with coffee beans — Stock Photo
    Conceptual human lungs with coffee beans
    Fitness instructor leading aerobics class in high lunge — Stock Photo
    Fitness instructor leading aerobics class in high lunge
    Normal human alveoli anatomy — Stock Photo
    Normal human alveoli anatomy
    Internal organs and cardiovascular system — Stock Photo
    Internal organs and cardiovascular system
    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
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore — Stock Photo
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore
    Fitness instructor leading class in low lunge — Stock Photo
    Fitness instructor leading class in low lunge
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    Side view of young woman in activewear doing One Legged King Pigeon pose while practicing yoga in light studio — Stock Photo
    Side view of young woman in activewear doing One Legged King Pigeon pose while practicing yoga in light studio
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Preteen boy undergoing lung function test with female nurse. — Stock Photo
    Preteen boy undergoing lung function test with female nurse.
    Young barefoot female in sportswear practicing yoga on Crescent Pose against rocky mountain in sunlight — Stock Photo
    Young barefoot female in sportswear practicing yoga on Crescent Pose against rocky mountain in sunlight
    Lung cancer in female realistic body 3d model, conceptual computer illustration. — Stock Photo
    Lung cancer in female realistic body 3d model, conceptual computer illustration.