TY - STAND AU - E. Somers AU - S. Thomas AU - L. Smeeth AU - A. Hall BT - Am J Epidemiol DO - 10.1093/aje/kwn408 M1 - 6 PY - 2009 SP - 749 EP - 55 T2 - Am J Epidemiol TI - Are individuals with an autoimmune disease at higher risk of a second autoimmune disorder? VL - 169 SN - 0002-9262 ER -