[SCHOOL DENTAL HYGIENE IN THE DEPARTMENT OF NORD IN 1964].
D005602:France; D006801:Humans; D006920:Hygiene; D009909:Oral Health; D009910:Oral Hygiene; D012572:School Health Services; D012574:Schools; D013223:Statistics as Topic
FRANCE; ORAL HEALTH; SCHOOL HEALTH; STATISTICS
L'HYGI'ENE DENTAIRE SCOLAIRE DANS LE D'EPARTEMENT DU NORD EN 1964.