For citations:
Kaplunov S.V., Ivashchenko I.V., Snigur G.L. Extraorgan retroperitoneal mature teratoma in a 12-year-old child. Russian Journal of Pediatric Hematology and Oncology. 2019;6(2):68-71. (In Russ.) https://doi.org/10.21682/2311-1267-2019-6-2-68-71