[Some problems of hygiene in the living conditions at the present stage].
D000397:Air Pollution; D004787:Environmental Pollution; D005859:Germany, East; D006801:Humans; D006920:Hygiene; D009787:Occupational Medicine; D011634:Public Health; D012924:Social Conditions; D012946:Social Welfare; D012950:Socialism; D012959:Socioeconomic Factors
Zu einigen Fragen der Hygiene der Lebensbedingungen in der gegenwärtigen Etappe.