1Kaemp FJ. Techniques of enteral feeding in the preterm infant. In: Library of Congress Catalogin-in-Publication Data, Neonatal nutrition and metabolism. Hay WW (eds), Louis: Mosby, 1991,335-348.
2Akinyorin SM, Kamat M, Pildes RS, et al. A prospective randomized trial of feeding methods in very low birth weight infants. Pediatrics,1997,100:E4.
3Laing IA, Lang MA, Callaghan O, et al. Nasogastric compared with nasoduodenal feeding in low birthweight infants. Arch Dis Child,1986,61:138-141.
4Newell SJ, Chaoman S, Booth IW. Ultrasonic assessment of gastric emptying in the preterm infant. Arch Dis Child,1993,69:32-36.
5Maria AC, Paul SB, Margaret AM, et al. Changes in gastric emptying in early postnatal life. J Ped,1997,130:931-937.
6Newell SJ, Booth IW, Morgan MEI. Gastro-oesophageal reflux in preterm infants. Arch Dis Child,1989,64:780-786.
7Riezzo G, Indrio F, Montagna O, et al. Gastric electrical activity and gastric emptying in term and preterm newborns. Neurogastroenterol Mot,2000,12:223-229.
8Widstrom AM, Marchini G, Matthiesen AS, et al. Nonnutritive sucking in tube-fed preterm infants: effects on gastric motility and gastric contents of somatostatin. J Ped Gastroenterology Nutrition,1988,7:517-523.
9Ville K, Knapp E, Tawil YA, et al. Slow infusion feeding enhance duodenal motor responses and gastric emptying in preterm infants . Am J Clin Nutr, 1998,68:103-108.
10Bo LK, Callaghan P. Soothing pain-elicited distress in Chinese neonates. Pediatrics,2000,105:E49.
