Blanc, Gisely, et al. “ Effectiveness of Enteral Nutritional Therapy in the Healing Process of Pressure Ulcers: A Systematic Review ”. Revista Da Escola De Enfermagem Da USP, vol. 49, no. 1, Feb. 2015, pp. 152-61, https://doi.org/10.1590/S0080-623420150000100020.