Abstract
Get full access to this article
View all access options for this article.
References
1.
Fox
W.
(1972 ). Bull. int. Un. Tuberc. , 47 , 49 .
2.
Sharbaro
J. A.
Hudson
L. D.
(1974 ). Amer. Rev. resp. Dis. , 110 , 91 .
3.World Health Statistics Report (1972 ). 23 , No. 8 .