In the name of Dr. John Ross Callahan.
A look back at the original National Dental Association, illustrious researcher Dr. John Ross Callahan and some of the distinguished award recipients who exemplified his dedicated spirit.
Dummett
Clifton O
CO
University of Southern California School of Dentistry, Los Angeles, USA.
D001363:Awards and Prizes; D044383:Black People / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012953:Societies, Dental / Q000266:history*; D014481:United States; D001741:Black or African American