1. “Massive Collapse of the Lungs Following Abdominal Operations,”;Elliott;Lancet,1914
2. “Experimental Atelectasis,”;Lee;Arch. Surg.,1929
3. “Syndrome of Pneumococcic Bronchial Obstruction,”;Coryllos;Arch. Int. Med.,1933
4. “Post-Operative Chest Complications,”;Brock;Guy’s Hosp. Rep.,1936
5. “The Prevention of Postoperative Pulmonary Atelectasis,”;Palmer;Lancet,1953