Ford, Alexander C., Bernstein, Charles N., Khan, Khurram J., Abreu, Maria T., Marshall, John K., Talley, Nicholas J., Moayyedi, Paul. Nature Publishing Group; 2011. Glucocorticosteroid therapy in inflammatory bowel disease: systematic review and meta-analysis.

Khan, Khurram J., Ullman, Thomas A., Ford, Alexander C., Abreu, Maria T., Abadir, A., Marshall, John K., Talley, Nicholas J., Moayyedi, Paul. Nature Publishing Group; 2011. Antibiotic therapy in inflammatory bowel disease: a systematic review and meta-analysis.

Talley, Nicholas J., Abreu, Maria T., Achkar, Jean-Paul, Bernstein, Charles N., Dubinsky, Marla C., Hanauer, Stephen B., Kane, Sunanda V., Sandborn, William J., Ullman, Thomas A., Moayyedi, Paul. Nature Publishing Group; 2011. An evidence-based systematic review on medical therapies for inflammatory bowel disease.