Systematic Review: Early Enteral Nutrition vs. Delayed Enteral Nutrition, With or Without Supplemental Parenteral Nutrition in Critically Ill Adults

Early enteral nutrition (within 48 hours) versus delayed enteral nutrition (after 48 hours) with or without supplemental parenteral nutrition in critically ill adults – Cochrane Library (free)

Summary: Early versus delayed feeding through a tube for critically ill adults in intensive care, with or without extra nutrition into a vein – Cochrane Library (free)