PT - JOURNAL ARTICLE AU - Yusuf Yazici AU - Hasan Yazici TI - Use of statistical analysis in open extension studies. DP - 2006 Feb 01 TA - The Journal of Rheumatology PG - 437--437 VI - 33 IP - 2 4099 - http://www.jrheum.org/content/33/2/437.short 4100 - http://www.jrheum.org/content/33/2/437.full SO - J Rheumatol2006 Feb 01; 33