1. Melanosis duodeni
2. Rare finding of concomitant pseudomelanosis of stomach and duodenum: Case report and literature review;Sunkara T;Gastroenterol Hepatol Bed Bench,2018
3. Endoscopically identified pseudomelanosis duodeni: striking yet harmless
4. Pseudomelanosis duodeni: A short review;Abumoawad A;Am J Digest Dis,2015
5. Ultrastructure and electron‐probe X‐ray analysis of the pigment in melanosis duodeni;Pounder DJ;J Submicrosc Cytol,1982