Sömjen, I., Seltene Falle von Gingivitis, Korrespondenzbl. f. Zahnartzte , 57: pt. 4, 122, 1933.
4.
Oddlaug, O., En undersokelse over tancaries, gingivitter og holdningsfeil hos skolebarn i nes, Romerike og Ost-Finnmark, Den norske tannlaegeforenings tidende, 49: 125, 1939.
5.
Klatsky, M., A Comparative Analysis of Masticatory Function and Its Relation to Dental Disease in Ancient and in Modern Man, J. A. D. A. & D. Cosmos, 24: 932, 1937.
6.
Carque, L., Nutrition and Dental Health, D. Items Interest, 61: 146, 1939.
7.
Wallace, J.S. , Deficiency Diseases, Protective Foods and Dental Caries, J. A. D. A., 22: 1334, 1935.
8.
Belding, L.J. AND Belding, P.H., An Evaluation of the Various Theories on the Etiology of Caries, D. Cosmos, 76: 140, 1933.
9.
Gerson, N., Wholemeal Bread and the Teeth, D. Mag. Oral Topics, 59: 197, 1942.
10.
Reynolds, R.A. , Relationship Between Endocrine Dysfunction and Paradental Disease, J. A. D. A., 20: 1850, 1933 .
11.
Brucker, M., The Endocrine Glands and the Teeth, D. Items Interest, 55: 186; 259; 347; 446, 1933.
12.
Idem, unpublished data.
13.
Sterling, E.B. , Health Studies of Negro Children, U. S. Pub. Health Rep., 43: 2713, 1928.
14.
Clements, F.W. AND Kirkpatrick, R.M., Medical and Dental Surveys of School and Preschool Children of New South Wales, D. J. Australia, 10: 339; 418, 1938.
15.
Barnes, H.N.V. , A Dental Examination of the Inhabitants of the Island of Tristan da Cunha, Brit. D. J., 63: 86, 1937.
16.
Kirkpatrick, R.M., Diet in Relation to Gingivitis: Field Observations in New Guinea, J. A. D. A. & D. Cosmos, 24: 197, 1937.
17.
Staz, J., Dental Caries in South Africa, S. African J. M. Sc., 3: Suppl., May 1938.
18.
Campbell, T.D. , Observations on the Teeth of Australian Aborigines, Hermannsburg, Central Australia, Austral. J. D., 41: 1, 1937.
19.
Idem, Observations on the Teeth of Australian Aborigines, Cockatoo Creek, Central Australia, Austral. J. D., 42: 41, 1938.
20.
Saunders, J.L. AND Taylor, R.M.S., Dental Survey of Maori Children. Account of a Dental Survey Made at Maungapohatu in the Urewera Country in May 1936 , D. Mag. Oral Topics, 55: 602, 1938.
21.
Balendra, W. , An Investigation into the Dental Conditions of the People of Ceylon, D. Mag. Oral Topics, 54: 981, 1937.