Pacini, Stefania, Tiziana Punzi, Gabriele Morucci, and Marco Ruggiero. 2011. “Macrophages of the Mucosa-Associated Lymphoid Tissue (MALT) As Key Elements of the Immune Response to Vitamin D Binding Protein-Macrophage Activating Factor”. Italian Journal of Anatomy and Embryology 116 (2):136. https://oajournals.fupress.net/index.php/ijae/article/view/4710.