Diniz, R. E. A. S., J. Goldenberg, J. C. M. de Carvalho, C. E. S. Gomes, E. D. Goldenberg, and A. Sementille. “Lymphoma of Unknown Origin Located in Paravertebral Muscles: An Unusual Cause of Low Back Pain in Children”. São Paulo Medical Journal, vol. 113, no. 4, July 1995, pp. 953-6, https://periodicosapm.emnuvens.com.br/spmj/article/view/1689.