DVB Scene 36
DVB Scene 40
DVB Scene 31
DVB Scene 35
DVB Scene 30
DVB Scene Issue 44
Pulmonary emphysema: Edited by Alvan L. Barach, M.D., and Hylan A. Bickerman, M.D., Baltimore, 1956, Williams & Wilkins Co., 545 pages, illustrated. $10
Handbook of respiration: Complied by Philip L. Altman, John F. Gibson, and Charles C. Wang, Philadelphia and London, W. B. Saunders Company