PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/rmdopen-2015-000146corr1 DP - 2015 Oct 01 TA - RMD Open PG - e000146corr1 VI - 1 IP - 1 4099 - http://rmdopen.bmj.com/content/1/1/e000146corr1.short 4100 - http://rmdopen.bmj.com/content/1/1/e000146corr1.full SO - RMD Open2015 Oct 01; 1