GhrelinReceptors, GhrelinPeptide HormonesSeverity of Illness IndexAppetiteEatingLeptinStomachPeptide YYAppetite StimulantsHuman Growth HormoneGrowth HormoneInjury Severity ScoreFastingAppetite RegulationAcylationHungerGastric EmptyingPostprandial PeriodReceptors, G-Protein-CoupledInsulinTrauma Severity IndicesFeeding BehaviorGrowth Hormone-Releasing HormoneBody WeightNeuropeptide YTime FactorsProspective StudiesBlood GlucoseSatiety ResponseGastric Mucosa