APA (7th ed.) Citation

Jin, W., Kong, Z., Qian, G., & Qiao, Z. A rare case of pseudomelanosis duodeni. Elsevier.

Chicago Style (17th ed.) Citation

Jin, Weicheng, Ziyu Kong, Guirong Qian, and Zhenguo Qiao. A Rare Case of Pseudomelanosis Duodeni. Elsevier.

MLA (9th ed.) Citation

Jin, Weicheng, et al. A Rare Case of Pseudomelanosis Duodeni. Elsevier.