Carpino, Guido, et al. “Gallbladder Is a Highly Available Source of Multipotent Progenitor Stem Cells With Hepatocyte, Cholangiocyte and Pancreatic Potentialities”. Italian Journal of Anatomy and Embryology, vol. 117, no. 2, Feb. 2013, p. 34, doi:10.36253/ijae-4220.