1. Study on Bronchospirometry;Urabe;Jap. J. Thoracic Surg.,1950
2. A New Flexible Double Lumen Catheter for Bronchospirometry;Carlens;J. Thoracic Surg.,1949
3. Studies on Bronchospirometry;Suzuki;Jap. J. Thoracic Surg.,1950
4. Björkman, S., and Carlens, E.: The Lung Function During Rest and Exercise in Lung Disease. A Bronchospirometric Study, Acta med. Scándinav. (Supp.) p. 259, 1951.
5. Bronchospirometry in the Lateral Decubitus Position;Rothstein;J. Thoracic Surg.,1950