About Stefano Boriani Books by Stefano Boriani AOSpine Masters Series Volume 2 Primary Spinal Tumors by (author) Luiz Roberto Gomes Vialle edited by Ziya L. Gokaslan, Stefano Boriani & Charles G. Fisher AOSpine Masters Series Volume 1 Metastatic Spinal Tumors by (author) Luiz Roberto Gomes Vialle edited by Ziya L. Gokaslan, Stefano Boriani & Charles G. Fisher