Differences in the presentation and treatment of primary liver tumors at a hepatology center and an oncology center K.P. Rojas-Pintor; M.A. Arizmendi-Villarreal; J.E. Aparicio-Salas; D.P. Moreno-Peña; D. Hernández-Barajas; P. Cordero-Pérez; L.E. Muñoz-Espinosa;