The prognostic impact of neutrophil-to-lymphocyte ratio, lymphocyte-to-monocyte ratio, and platelet-to-lymphocyte ratio in patients with advanced colorectal cancer treated with first-line chemotherapy - Magdalena Krakowska; Sylwia Dębska-Szmich; Rafał Czyżykowski; Anna Zadrożna-Nowak; Piotr Potemski (Gastroenterology Review)