TY - CONF AU - Iglesias Rey, Marta PY - 2012 SN - 1873-9946 UR - http://hdl.handle.net/20.500.11940/2517 LA - eng TI - Work productivity and activity impairment in Spanish Crohn's disease patients DO - http://dx.doi.org/10.1016/S1873-9946%2812%2960285-2 VL - 6 ER -