References
- Thorp J. M., Railton R. Hypoxia due to air in the oxygen pipeline. Anaesthesia 1982; 37: 683–687
- Bageant R. A., Hayt J. W., Epstein R. M. Error in a pipeline gas concentration: an unanticipated consequence of a defective check valve. Anesthesiology 1981; 54: 166–169
- Karmann U., Roth F. Prevention of accidents associated with air-oxygen mixers. Anaesthesia 1981; 37: 680–682