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Amin, R., Berdan, E., Knipstein, J. et al. Extraspinal sacrococcygeal ependymoma masquerading as sacrococcygeal teratoma in the pediatric patient. Pediatr Surg Int 34, 109–112 (2018). https://doi.org/10.1007/s00383-017-4214-0
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DOI: https://doi.org/10.1007/s00383-017-4214-0