1. Postoperative pulmonary complications;Eliason;Surg., Gynec. & Obst.,1932
2. Postoperative pulmonary complications; a statistical study based on two years personal observation;King;Surg., Gynec. & Obst.,1933
3. Reduction in vital capacity following operation;Churchill;Surg., Gynec. & Obsl.,1927
4. Davis, E. Personal communication.
5. Hyperventilation in abdominal surgery;Ryan;J. A. M. A.,1936