Sobal, Jeffery; Kettel Khan, Laura; Bisogni, Carole - In: Social Science & Medicine 47 (1998) 7, pp. 853-863
The food system is a widely used concept, but few systematic frameworks model the full scope and structure of the food and nutrition system. Bibliographic searches, a modified Delphi technique, focus groups and interviews with experts on the topic were conducted to identify existing models of...