241. Da po hui ji ji yi de xin li Publication: Shanghai : Zhongguo fang lao xie hui bian yin, [194u] Subject(s): Tuberculosis, Pulmonary -- prevention & controlHealth EducationRadiographyTuberculosis, Pulmonary -- diagnostic imagingChina
242. This advertisement is to inform our customers and others Author(s): Grose, Francis, 1731?-1791, author Publication: London: , 1783 Subject(s): Sexual BehaviorPublic HealthHealth EducationHealth Promotion
243. Professional oral hygiene care at regular intervals is important Subject(s): Dental OfficesDental EquipmentToothbrushingWomenHealth EducationNetherlandsWorld Health Organization
244. Papier-mâché dummy used to teach dental hygiene Subject(s): ToothbrushingHealth EducationWorld Health Organization
246. A lesson in dental care in Thailand. Prevention of tooth decay in childhood is of major importance Subject(s): ToothbrushingChildHealth EducationWorld Health Organization
247. Children in the Netherlands learning how to keep their mouths healthy. Good habits started early in life are a sound foundation for oral health Subject(s): Dental OfficesDental EquipmentDental InstrumentsToothbrushingChildHealth EducationNetherlandsWorld Health Organization
250. Two members of the pupils' "Health Committee" in an Egyptian school. They are preparing the antseptics and absorbant cotton for the anti-trachoma treatment Subject(s): ChildHealth EducationHealth PromotionWorld Health Organization.