PUBLIC HEALTH IN THE USSR.
D004501:Education, Medical; D006266:Health Education; D006294:Health Resorts; D006801:Humans; D008429:Maternal Welfare; D011634:Public Health; D012106:Research; D012943:Social Security; D014586:USSR
EDUCATION, MEDICAL; HEALTH EDUCATION; HEALTH RESORTS; MATERNAL WELFARE; PUBLIC HEALTH; RESEARCH; SOCIAL SECURITY; USSR