1. Raffle, Dr. P. A. B. Proceedings of the Symposium on Absence from Work Attributed to Sickness, P. 15.
2. Sunday Times, March 8th, 1970.
3. Trans. Soc. Occup. Med. Vol. 19, No. 2, April, 1969, “A Review of the Recent Research Symposium on Sickness Absence”.
4. FitzGerald, Dr. Garrett. “Irish Times”, 19th Feb., 1970.
5. Proceeding of the Symposium on Absence from Work Attributed to Sickness, P. 74.