APA (7th ed.) Citation

Gates, M., Shah, N., & Saeed, I. A Mass in the Anal Canal Found to be Poorly Differentiated Small-Cell Neuroendocrine Carcinoma. Wolters Kluwer Medknow Publications.

Chicago Style (17th ed.) Citation

Gates, Michael, Nirali Shah, and Imran Saeed. A Mass in the Anal Canal Found to Be Poorly Differentiated Small-Cell Neuroendocrine Carcinoma. Wolters Kluwer Medknow Publications.

MLA (9th ed.) Citation

Gates, Michael, et al. A Mass in the Anal Canal Found to Be Poorly Differentiated Small-Cell Neuroendocrine Carcinoma. Wolters Kluwer Medknow Publications.

Warning: These citations may not always be 100% accurate.