1. Lochs H, et al. Introductory to the ESPEN Guidelines on Enteral Nutrition: Terminology, definitions and general topics. Clin Nutr. 2006;25(2):180-6. 2. McClave SA, et al. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient: Society of Critical Care Medicine (SCCM) and American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.). JPEN J Parenter Enteral Nutr. 2016;40(2):159-211. Erratum in: JPEN J Parenter Enteral Nutr. 2016;40(8):1200. 3. Marik PE. Feeding critically ill patients the right 'whey': thinking outside of the box. A personal view. Ann Intensive Care. 2015;5(1):51. 4. Tolia V, et al. Gastric emptying using three different formulas in infants with gastroesophageal reflux. J Pediatr Gastroenterol Nutr. 1992;15(3):297-301. 5. Khoshoo V, Brown S. Gastric emptying of two whey-based formulas of different energy density and its clinical implication in children with volume intolerance. Eur J Clin Nutr. 2002;56(7):656-8. 6. Fried MD, et al. Decrease in gastric emptying time and episodes of regurgitation in children with spastic quadriplegia fed a whey-based formula. J Pediatr. 1992;120(4 Pt 1):569-72. 7. Coppini LZ, Sampaio H, Marco D. Sociedade Brasileira de Nutrição Parenteral e Enteral, Associação Brasileira de Cirurgia Pediátrica, Sociedade Brasileira de Clínica Médica et al. Recomendações Nutricionais para Crianças em Terapia Nutricional Enteral e Parenteral. Projeto Diretrizes (DITEN), 2011.