Abstract

Get full access to this article
View all access options for this article.
References
1.
Ennis, L.M.
: Dental Roentgenology , Lea and Febiger , Philadelphia , 1946 .
2.
Paatero, Y.V.
: The Use of a Mobile Light Source in Radiography , Acta Radiologica
169 : 221 , 1948 .
3.
Smathers, H.
: Method of, and Dental X-ray Machine for, Producing X-ray Pictures , U. S. Patent No. 2,476,776, July, 1949 .
