1. Personal communication;Beard, E.E.,1947
2. Coste, F., and Forestier, J. (1935). Bull. Soc. med. H6p. Paris, 51, 772.
3. "Commentaries on the History and Cure of;Heberden, W.,1803
4. Personal communication;Hench, P.S.,1947
5. Hench, P. S. (1954). Ibid., 62, 452.