Columbia subject headings:
Alcoholism and employment--United States.
Drugs and employment--United States.
Employee assistance programs--Law and legislation--United States.
Employee assistance programs--United States.
Labor discipline--Law and legislation--United States.
Harvard subject headings:
Alcoholism and employment--United States.
Drug testing--Law and legislation--United States
Drugs and employment--United States.
Employee assistance programs--Law and legislation--United States.
Employee assistance programs--United States.
Labor discipline--Law and legislation--United States.
Princeton subject headings: