French M, Neighbors D. A model to estimate the compliance costs of food labeling regulations. In: J.A. Caswell, editors. The economics of food safety. New York: United States. New York: Elsevier Science Publishing Co, Inc; 1991. p.299-325.
Fyler DC, Rothman KJ, Buckley LP. The determinants of five year survival of infants with critical congenital heart disease. In: Engle MA, editors. Pediatric cardiovascular disease. Philadelphia: PA. FA Davis Co; 1980.