1968 survey of dental practice. X. Some aspects of the dentist's professionl development.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000571:American Dental Association; D004468:Economics, Dental; D004498:Education, Dental, Continuing; D006801:Humans; D008875:Middle Aged; D013223:Statistics as Topic; D014481:United States