共 50 条
- [6] ORAL HYGIENE IN PRIMARY SCHOOL-CHILDREN IN BENIN-CITY, NIGERIA [J]. JOURNAL OF EPIDEMIOLOGY AND COMMUNITY HEALTH, 1981, 35 (03): : 224 - 226
- [7] DENTAL-CARIES AND ORAL HYGIENE STATE AMONG SCHOOL-CHILDREN IN KUWAIT [J]. JOURNAL OF THE KUWAIT MEDICAL ASSOCIATION, 1977, 11 (01): : 25 - 39