APA (7th ed.) Citation

Beck, P. L., Blustein, P. K., & Andersen, M. A. Aphthous Esophagael Ulceration: A Novel Presentation of Crohn’s Disease? Wiley.

Chicago Style (17th ed.) Citation

Beck, Paul L., Philip K. Blustein, and Melvin A. Andersen. Aphthous Esophagael Ulceration: A Novel Presentation of Crohn’s Disease? Wiley.

MLA (9th ed.) Citation

Beck, Paul L., et al. Aphthous Esophagael Ulceration: A Novel Presentation of Crohn’s Disease? Wiley.