As far as i've read, there is a strong relation between NEC and formula.
I do have a number of references of researches that investigates this:


Barlow B et al. 1974. An experimental study of acute neonatal
enterocolitis: the importance of breast milk. J Pediatr Surg 9:587-94
Berseth CL: Effect of early feeding on maturation of the preterm infant's
small intestine, J Pediatr 120:947,1992
Brown EG, Ainbender E, Sweet AY: Effect of feeding stool endotoxins:
possible relationship to necrotizing enterocolitis, Pediatr Res 10:352,
1976
Bradley M. 1986. Breastfeeding and necrotizing enterocolitis. Indiana
Med. October 1986, 859-61.
Gross SJ, Slagle TA: Feeding the Low Birthweight Infant, Clin Perinatol
20:193, 1993
Kleigman R et al. 1979. Necrotizing enterocolitis in infants fed human milk.
J Pediatr 95:450-53
Kleigman R et al. 1980 Human milk feedings and NEC J Pediatr 96:780-81
Kosloske AM. 1984. Pathogenesis and prevention of necrotizing
enterocolitis: a hypothesis based on personal observation and a review
of the literature. Pediatrics 74:1086-91
Lucas A, Cole T. 1990 Breastmilk and neonatal necrotizing enterocolitis.
Lancet 336:1519-1523
Moriarty R et al. 1979 Necrotizing enterocolitis and human milk. J Pediatr
94:295-96
Stevenson D, Graham C. Stevenson J. 1980. Neonatal necrotizing
enterocolitis: 100 new cases. Adv Pediatr 27:319-40


regards, Annelies Bon

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