501. Dr. Yadollah Zafari ... is lecturing ... on variants of the cholera vibrio Subject(s): LaboratoriesEducation, MedicalTeachingNigeriaWorld Health Organization
503. During a cholera epidemic in the Gilbert Islands, mass vaccination against the cholera outbreak did take place but not as much emphasis was place on it Subject(s): InjectionsNursesPublic HealthWorld Health Organization
504. Professional oral hygiene care at regular intervals is important Subject(s): Dental OfficesDental EquipmentToothbrushingWomenHealth EducationNetherlandsWorld Health Organization
505. Papier-mâché dummy used to teach dental hygiene Subject(s): ToothbrushingHealth EducationWorld Health Organization
507. A lesson in dental care in Thailand. Prevention of tooth decay in childhood is of major importance Subject(s): ToothbrushingChildHealth EducationWorld Health Organization
508. Dr. Zdravko Toshev, the village dentist Subject(s): Dental OfficesDental EquipmentDentistsWorld Health Organization
509. Throughout human history, the swollen face of a toothache sufferer has been a commonplace fact of life. As shakespeare wrote:"For there was never yet philosopher that could endure the toothache patiently." Subject(s): Dental OfficesDentistsWorld Health Organization
510. Miss Melody Sutherland, nurse in charge of the School Dental Clinic at Naenae in Lower Hutt.Geogory bastion, 11 years of age, gets free dental examination twice a year like every other schoolchild in New Zealand Subject(s): NursesDental OfficesDental EquipmentWomenWorld Health Organization