Abstract
Get full access to this article
View all access options for this article.
References
1.
Goetzl, F.R.
,
Burrill, D.Y.
,
Ivy, A.C.
, and
Harris, S.C.
: Quart . Bull. Northwestern U. Med. Sch . 17 : 280 , 1943 .
2.
Mackta, L.
: Columbia Dental Review
9 : 6 , 1938 .