The effect of excessive x-ray upon development and calcification of rats' teeth
By: [by] William F. Leonard, George A. Smith
Contributors: Smith, George A.
Published: 1944
Language: eng
Number of pages: 29
Subjects: Academic Dissertations as Topic; Ionizing Radiation
Notes: Thesis (Orthodontics Certificate) -- Columbia University School of Dental and Oral Surgery -- New York, l944.

Bibliography : p. 29.