Caridade, Sofia, Alberto Leite, Isabel Agonia, Manuela Rocha, Narciso Oliveira, and Ílidio Brandão. 2008. “Vertebral Haemangiomatosis – Two Clinical Case Reports”. Internal Medicine 15 (4). Lisboa, Portugal:272-76. https://revista.spmi.pt/index.php/rpmi/article/view/1495.