1. Pulmonary contusion;Alfano;J. Trauma,1965
2. Respiration and Circulation;Altman,1971
3. Pulmonary Complications of Abdominal Surgery;Anscombe,1957
4. Acute respiratory distress in adults;Ashbaugh;Lancet,1967
5. Impending death under anesthesia;Bailey;Lancet,1947