Impact of an Oral Nutritional Protocol with Oligomeric Enteral Nutrition on the Quality of Life of Patients with Oncology Treatment-Related Diarrhea oleh Alejandro Sanz-Paris, Javier Martinez-Trufero, Julio Lambea-Sorrosal, Raimon Milà-Villarroel, Fernando Calvo-Gracia, on behalf of the DIAPOENO Study