The Division of Critical Care, Pulmonary, Allergic and Immunologic Diseases delivers comprehensive diagnostic and therapeutic services for the entire spectrum of diseases that affect the respiratory system. The staff uses endoscopic, imaging and physiologic testing procedures. In addition, these specialists take advantage of advanced diagnostic techniques involving thoracoscopy and transthoracic needle biopsy, in collaboration with specialists in thoracic radiology and thoracic surgery. The division has special programs in asthma, emphysema and interstitial lung disease and enjoys a national reputation in asthma research and in management of difficult asthmatic conditions. Pulmonary medicine specialists apply the newest technology and strategies in ventilator and respiratory care and in weaning patients from ventilator dependency.