1. Proceedings of Symposium, Smith, Kline & French Laboratories;W. Overholzer,1955
2. Proceedings of Symposium, Smith, Kline & French Laboratories;F. A. Freyhan,1955
3. Proceedings of Symposium, Smith, Kline & French Laboratories;B. Pollack,1955
4. Proceedings of Symposium, Smith, Kline & French Laboratories;F. R. Reiseman,1955
5. Rashkis, H. A., and Smarr, E. R.: Arch. Neurol. and Psychiat., 77:202, February 1957.