Increased incidence and impact of upper and lower gastrointestinal events in patients with rheumatoid arthritis in Olmsted County, Minnesota: a longitudinal population-based study.

- Myasoedova, Elena, Matteson, Eric L., Talley, Nicholas J., Crowson, Cynthia S.

Prevalence and risk factors of gastrointestinal disorders in patients with rheumatoid arthritis: results from a population-based survey in Olmsted County, Minnesota

- Myasoedova, Elena, Talley, Nicholas J., Manek, Nisha J., Crowson, Cynthia S.