PT - JOURNAL ARTICLE AU - Elena Nikiphorou AU - Fowzia Ibrahim AU - David L. Scott TI - Rheumatoid Arthritis Real-world Management Over 20 Years AID - 10.3899/jrheum.201189 DP - 2021 Mar 15 TA - The Journal of Rheumatology PG - jrheum.201189 4099 - http://www.jrheum.org/content/early/2021/03/10/jrheum.201189.short 4100 - http://www.jrheum.org/content/early/2021/03/10/jrheum.201189.full AB - Clinical trials show which treatments improve rheumatoid arthritis (RA), whereas observational studies show how patients are managed in routine practice. Prospective cohort studies give the most detailed information about what happens to patients, but being a part of a prospective study influences patient management because patients are no longer routine cases.