Left image: Father Romano Zago, the world's expert on practical cases treated with Aloe Arborescens.
Aloe cancer-prostate - Dott. Libertario Raffaelli- Azienda Sanitaria di Firenze - Itália
Department of Chemistry, University of South California and Tampa, Florida, USA
Division of Oncology and Hematology, University Génova, Italy and others
Cancer Tutor - The future of cancer research, by Webster Kehr, Independent Cancer Research Foundation, Inc. - Lindon, Utah, USA
Aloe Arborescens Mill, by Andrew Hankey (2001) & Alice Notten (2004)
A guide on cancer, by Instituto OncoGuia - Brasil