De araújo, E. B., P. B. Pujatti, and J. Mengatti. 2010. “Radiolabeling of Substance P With Lutetium-177 and Biodistribution Study in Rat Pancreatic Tumor Xenografted Nude Mice”. Cellular and Molecular Biology 56 (2):12-17. https://www.cellmolbiol.org/index.php/CMB/article/view/997.