Occupational health manpower in the 70's.
D000068:Accreditation; D002568:Certification; D005380:Financing, Government; D006077:Government Agencies; D006281:Health Occupations / Q000193:education; D007883:Legislation, Medical; D009787:Occupational Medicine / Q000193:education; D013997:Time Factors; D014146:Training Support; D014481:United States; D000078329:Workforce