Columbia subject headings:
Advertising--Pharmaceutical industry--Law and legislation--United States.
Drugs, Nonprescription--United States.
Harvard subject headings:
Advertising--Drugs--Law and legislation--United States.
Drugs, Nonprescription
Drugs, Nonprescription--United States.
Princeton subject headings:
Advertising--Drugs--Law and legislation--United States.
Drugs, Nonprescription.