Abstract
Get full access to this article
View all access options for this article.
References
1.
Lynch, J.B.
and
Bell, J.
(1947 ). Brit. J. industr. Med . 4 , 84 . New Engl. J. Med . (1940 ). 223 , 303
2.
Elsbury, W.B.
,
Browne, R.C.
and
Boyes, J.
(1951 ). Brit. J. industr. Med.
8 , 179 .
3.
Dale, P.P.
and
Mccauley, H.B.
(1948 ). J. Amer. dent. Ass.
37 , 131 .
4.
Finch, L.D.
(1957 ). Brit. dent. J.
103 , 280 .
5.
Hicks, H.
(1950 ). J. Amzr. dent. Ass.
41 , 38 .
6.
Stafne, E.C.
, and
Lovestedt, S.A.
(1947 ). J. Amer. dent. Ass.
34 , 586 .
7.
Burket, L.W.
(1957 ). Oral Medicine , 3 rd ed. Lippincott , Philadelphia . p. 199 .
8.
Thoma, K.H.
and
Robinson, H.B.G.
(1955 ). Oral and Dental Diagnosis . 4 th ed. Saunders , Philadelphia . pp. 190 -197 .
9.
Schour, I.
, and
Sarnat, B.G.
(1942 ). J. Amer. med. Ass.
120 , 1 ,197 .