Constipation Is More Frequent Than Diarrhea in Patients Fed Exclusively by Enteral Nutrition: Results of an Observational Study - Bittencourt, Amanda F.; Logullo, Luciana; Martins, Juliana R.; Shiroma, Glaucia; Horie, Lilian; Ortolani, Maria Claudia; Silva, Maria de Lourdes Teixeira da; Waitzberg, Dan Linetzky (Nutrition in clinical practice, 2012)