1. Lung complaints after operations with anaesthesia;Armstrong;BMJ,1906
2. A review of the postoperative cases of pneumonia in the second surgical service of the New York Hospital;Bancroft;Med Record,1916
3. Uber lungenkomplikationen nach bauchoperationen;Lawen;Zentralbl Chir,1907
4. Complications following surgical operations;Beckman;Surg Gynecol Obstet,1914
5. Differential diagnosis between pneumonia and acute appendicitis made by roentgen examination before physical signs of pneumonia obtained;Booth;Med Record,1916