Parenteral fish oil as a pharmacological agent to modulate post-operative immune response: A randomized, double-blind, and controlled clinical trial in patients with gastrointestinal cancer - Torrinhas, Raquel Susana Matos de Miranda; Santana, Raquel; Garcia, Thaís; Cury-Boaventura, Maria Fernanda; Sales, Maria Mirtes; Curi, Rui; Waitzberg, Dan Linetzky (Clinical Nutrition, 2013)