De araújo, E. B., P. B. Pujatti, and J. Mengatti. “Radiolabeling of Substance P With Lutetium-177 and Biodistribution Study in Rat Pancreatic Tumor Xenografted Nude Mice”. Cellular and Molecular Biology, vol. 56, no. 2, May 2010, pp. 12-17, https://mail.cellmolbiol.org/index.php/CMB/article/view/997.