Columbia subject headings:
Advertising--Developing countries.
Advertising--Food.
Advertising--Pharmaceutical industry.
Developing countries--Marketing.
Food industry and trade--Great Britain.
Pharmaceutical industry--Great Britain.
Harvard subject headings:
Advertising--Developing countries
Advertising--Drugs
Advertising--Food
Food industry and trade--Developing countries
Food industry and trade--Great Britain
Marketing--Developing countries.
Pharmaceutical industry--Great Britain
Pharmaceutical industry.
Princeton subject headings:
Advertising--Developing countries.
Advertising--Food.
Advertising--Pharmaceutical industry.
Food industry and trade--Great Britain.
Marketing--Developing countries.
Pharmaceutical industry--Great Britain.