A Review of the problem of retention and an appraisal of several cases completed at Columbia University, Department of Orthodontics
By: [by] Louis I. Keren
Published: 1941
Language: eng
Number of pages: 20
Subjects: Academic Dissertations as Topic; Removable Orthodontic Appliances
Notes: Thesis (Orthodontics Certificate) -- Columbia University School of Dental and Oral Surgery -- New York, 1941.

Bibliography: p. [14]