Austin, James Elmer2019-12-162019-12-1619671967(OCoLC)15922493b14324350https://hdl.handle.net/2144/38817PLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please log in with a valid BU account to access and click Download. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.Typewritten.Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, March 1967.en-USThis work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.Vitamin AThe effects of vitamin A acid and vitamin A alcohol on the periodontal structures in the ratThesis/Dissertation