Fig. 4From: A new risk-stratification system for hepatoblastoma in children under six years old and the significance for prognosis evaluation—a 14-year retrospective study from a single centerThe correlation between different risk factors and the prognosis. e Comparison of OS of patients with different PRETEXT stages. f Comparison of OS of patients with or without vascular invasion. g Comparison of OS of patients with or without distant metastasis. h Comparison of OS of patients with a single focus or multiple foci of the primary tumorBack to article page