1. Preliminary Report of a Cooperative Study Veterans Administration, Am. Rev. Tbc 56 (1947), 485.
2. Am. Trudeau Soc, H. McLeod Riggins, H. Hinshaw, Am. Rev. Tbc 56 (1947), 168.
3. T. Lenert und G. Hobby, Am. Rev. Tbc 59 (1949), 219.
4. P. D’Arcy Hart, Am. Rev. Tbc 59 (1949), 223.
5. Medical Research Council, Brit. M. J. 1948, 2, 769.