The division of pulmonology deals with overall respiratory diseases such as tuberculosis, chronic obstructive pulmonary disease, asthma, lung cancer and pulmonary infection. These diseases can be diagnosed and treated in the division of pulmonology, but under the necessity, they are consulted with department of chest surgery and clinical radiology, etc, which are concerned with each disease. The field of patients who are under mechanical ventilation in intensive care unit is also part of the division of Pulmonology.