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De Ioris M, Brugieres L, Zimmermann A, Keeling J, Brock P, Maibach R, Pritchard J, Shafford L, Zsiros J, Czaudzerna P, Perilongo G (2007). “Hepatoblastoma with a low serum alpha-fetoprotein level at diagnosis: The SIOPEL group experience.”. Eur J Cancer44 (4): 545–50. doi:10.1016/j.ejca.2007.11.022. PMID18166449.
Otte JB, Pritchard J, Aronson DC, et al. (January 2004). “Liver transplantation for hepatoblastoma: results from the International Society of Pediatric Oncology (SIOP) study SIOPEL-1 and review of the world experience”. Pediatr Blood Cancer42 (1): 74–83. doi:10.1002/pbc.10376. PMID14752798.