431. The silver screen flickers in the Indian night. Television can convey a particularly vivid health message, but most developing countries sets are rare outside the large towns Subject(s): Public HealthHealth EducationWorld Health Organization
432. Cholera can thrive where poverty, overcrowding and primitive sanitation are found together, as in this Asian city Subject(s): Public HealthWorld Health Organization
433. An eye-test in the open air for villagers in a small Sudanese community Subject(s): Health PersonnelPublic HealthWorld Health Organization
434. [Visiting nurse shows mother how to sterilize baby bottles] Subject(s): MothersMother-Child RelationsPublic Health
436. Why are advertised remedies and doctors who advertise dangerous? Subject(s): Nonprescription DrugsQuackeryPublic Health
440. Investigation of rural sanitation Subject(s): Public HealthParran, Thomas, Jr., 1892-1968.United States. Public Health Service.