Guarniz Poma GA, Gutiérrez-Verde DE, Gutiérrez-Valverde RA, Díaz-Plasencia JA. Giant well-differentiated retroperitoneal liposarcoma, report of a case. Acta Med Peru [Internet]. 2023Jul.31 [cited 2024Nov.24];40(2). Available from: http://54.39.98.165/index.php/AMP/article/view/2327