Diniz, Ricardo Edesio Amorim Santos, José Goldenberg, José Carlos Medina de Carvalho, Carlos Eduardo Sales Gomes, Evelin Diana Goldenberg, and Angelo Sementille. 1995. “Lymphoma of Unknown Origin Located in Paravertebral Muscles: An Unusual Cause of Low Back Pain in Children”. São Paulo Medical Journal 113 (4):953-56. https://periodicosapm.emnuvens.com.br/spmj/article/view/1689.