PT - JOURNAL ARTICLE ED - , TI - Pacing predicts leaving work in ankylosing spondylitis AID - 10.1136/oem.59.12.852 DP - 2002 Dec 01 TA - Occupational and Environmental Medicine PG - 852--852 VI - 59 IP - 12 4099 - http://oem.bmj.com/content/59/12/852.short 4100 - http://oem.bmj.com/content/59/12/852.full SO - Occup Environ Med2002 Dec 01; 59