REFERENCES
- Fletcher, C. M., Jones, N. L., Burrows, B. and Niden, A. H.: American emphysema and British bronchitis: A standardized comparative study. Amer Rev Resp Dis 90: 1, 1964.
- Burrows, B., Niden, A. H., Fletcher, C. M. and Jones, N. L.: Clinical types of chronic obstructive lung disease in London and Chicago: A study of 100 patients. Amer Rev Resp Dis 90: 14, 1964.
- A report of the conclusions of a Ciba guest symposium: Terminology, definitions and classification of chronic pulmonary emphysema and related conditions. Thorax 14: 86, 1959.
- A statement by the Committee on Diagnostic Standards for Nontuberculous Respiratory Diseases, American Thoracic Society: Chronic bronchitis, asthma and pulmonary emphysema. Amer Rev Resp Dis 85: 762, 1962.
- Report of an expert committee: Chronic cor pulmonale. WHO Techn Rep Ser 213, 1961.
- Hentel, W., Longfield, A. N., Vincent, T. N., Filley, G. F. and Mitchell, R. S.: Fatal chronic bronchitis. Amer Rev Resp Dis 87: 216, 1963.
- Sweet, H. G, Wyatt, J. P., Fritsch, A. and Kin- Sella, P. W.: Panlobular and centrilobular emphysema: Correlations of clinical findings with pathological patterns. Ann Intern Med 55: 565, 1961.
- Sutinen, S., Christoforidis, A. J., Klugh, G. A. and Pratt, P. C.: Roentgenologic criteria for the recognition of nonsymptomatic pulmonary emphysema. Amer Rev Resp Dis 91: 69, 1965.
- Burrows, B., Niden, A. H., Barclay, W. R. and Kasik, J. E.: Chronic obstructive lung disease: I. Clinical and physiologic findings in 175 patients and their relationship to age and sex. Amer Rev Resp Dis 91: 521, 1965.
- Burrows, B., Niden, A. H., Barclay, W. R. and Kasik, J. E.: Chronic obstructive lung disease: II. Relationship of clinical and physiologic findings to the severity of airways obstruction. Amer Rev Resp Dis 91: 665, 1965.
- Fletcher, C. M.: The clinical diagnosis of pulmonary emphysema: An experimental study. Proc Roy Soc Med 45: 577, 1952.
- Laws, J. W. and Heard, D. E.: Emphysema and the chest film: A retrospective radiological and pathological study. Brit J Radiol 35: 750, 1962.
- Burrows, B., Strauss, R. H. and Niden, A. H.: Chronic obstructive lung disease: III. Interrelationships of pulmonary function data. Amer Rev Resp Dis 91: 861, 1965.
- Bates, D. V., Knotts, J. M. S. and Christie, R. V.: Respiratory function in emphysema in relation to prognosis. Quart J Med 25: 137, 1956.