title: Characteristics of registered nurses, 1972 and 1977-78.
mesh_terms: D000328:Adult; D003625:Data Collection; D004522:Educational Status; D004651:Employment; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D009726:Nurses / Q000600:supply & distribution*; D011364:Professional Practice; D013041:Specialties, Nursing; D014481:United States