are concerned with diseases of the lungs and airways and can diagnose and treat pneumonia, cancer, pleurisy, asthma, occupational diseases, bronchitis, sleep disorders, and emphysema. Pulmonologists test lung function, examine the bronchial airways and prescribe and monitor mechanical breathing technology. Many pulmonary disease experts also specialize in critical care. Pulmonary disease is a subspecialty of internal medicine.

are trained in treatment and management of diseases of the lungs and airway. They diagnose and treat pneumonia, pleurisy, asthma, occupational diseases, bronchitis, sleep disorders and emphysema. These physicians can also test lung function, examine the bronchial airways and prescribe and monitor mechanical breathing technology. Many pulmonary disease experts also specialize in critical care.