Comparison of duties and responsibilities of public health educators, 1957 and 1969.
D003253:Consultants; D003625:Data Collection; D005260:Female; D006266:Health Education / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008402:Mass Media; D011634:Public Health; D012572:School Health Services; D013996:Time and Motion Studies; D014481:United States; D000078329:Workforce