1. Cannefax, G. R., Beyer, H. R., and Johnwick, E. B. (1953). Amer. J. Syph., 37, 348.
2. Fugazzotto, P. (1953). Publ. Hlth Rep. (Wash.), 68, 304.
3. Harris, A. (1947). J. vener. Dis. Inform., 28, 249.
4. Kahn, R. L. (1940). Arch. Derm. Syph. (Chicago), 41, 817.
5. Manual of Serologic Tests for Syphilis;Kline, B.S.; Suessenguth, H.;Public Health Service,1946