[Perspectives of hygiene research till 1980].
D003604:Czechoslovakia; D005544:Forecasting; D006285:Health Planning; D006306:Health Surveys; D006920:Hygiene; D009787:Occupational Medicine; D011634:Public Health; D012106:Research; D012423:Rural Health
Perrspektiven der Hygiene-Forschung bis 1980.