Validation and improvement of the predictive equation for resting energy expenditure in advanced gastrointestinal cancer - Ozorio, Gislaine Aparecida; Souza, Micheline Tereza Pires de; Singer, Pierre; Lopez, Rossana Veronica Mendoza; Alves-Almeida, Maria Manuela Ferreira; Ribeiro Junior, Ulysses; Waitzberg, Dan Linetzky (Nutrition, 2020)