1. Spirometry is the evaluation of pulmonary function;Morris;West J Med,1974
2. Relationship between preoperative pulmonary function tests and complications after thoracotomy;Boysen;Surg Gynecol Obstet,1981
3. Office spirometry;Petty;Semin Respir Dis,1983
4. Office spirometry in clinical practice;Permutt;Chest,1978
5. Snowbird Workshop on Standardization of Spirometry;Am Rev Respir Dis,1979