Abstract

References
1.
Davies
D.
(1955 ) Tubercle , 36 , 179 .
2.First (Progress) Report to the Medical Research Council by their Tuberculosis Vaccines Clinical Trials Committee (1956 ) Brit. med. J. , i , 413 .
3.
Heaf
F.
(1951 ) Lancet , ii , 151 .
4.
Hyge
T. V.
(1947 ) Acta tuberc. Scand. , 21 , 1 .
5.
Irvine
K. N.
(1957 ) BCG and Vole Vaccination.
2nd edit.
National Association for the Prevention of Tuberculosis , London .
6.Registrar-General (1949 ) Statistical Review , 29 , 27 .
7.
Townsend
R. L.
MacDonald
R.
(1955 ) J.R. Army med. Cps. , 101 , 155 .
8.
Houghton
L. E.
(1954 ) Lancet , i , 595 .
