World Health Organization (WHO)
College of Dental Surgeons of British Columbia
Rex Camrass
E. Kikwilu
Unknown Author
Office for National Statistics
British Dental Association
R. Gary Rozier
National Institute of Dental Research (U.S.). Epidemiology and Oral Disease Prevention Program
Kŭng-ho Yi
Canada. Health Programs Branch.
J. E. Todd
J. M. Armfield
JM Armfield
Lierre Keith
Arnljot