Çağlar, Kudret, et al. “Successful Treatment of Retroperitoneal Giant Cell-Type Malignant Fibrous Histiocytoma in a 5-Year-Old Boy”. The Turkish Journal of Pediatrics, vol. 49, no. 3, July 2007, pp. 307-11, https://doi.org/10.24953/turkjpediatr.2007.2557.