1. Two ventilating attachments for bronchoscopes;Sanders;Delaware Medical Journal.,1967
2. Needle-catheter brings oxygen to the trachea;Jacobs;Journal of the American Medical Association,1972
3. Transtracheal ventilation;Spoerel;British Journal of Anaesthesia,1971
4. Transtracheal ventilation during anesthesia;Smith;Anesthesia and Analgesia; Current Researches,1974
5. Transtracheal ventilation in paediatric patients;Smith;British Journal of Anaesthesia,1974