TY - JOUR AU - Hernández Ramirez, Vicent PY - 2012 SN - 0944-1174 UR - http://hdl.handle.net/20.500.11940/521 LA - eng TI - Leukocytapheresis for steroid-dependent ulcerative colitis in clinical practice: Results of a nationwide Spanish registry DO - 10.1007/s00535-011-0499-2 T2 - JOURNAL OF GASTROENTEROLOGY VL - 47 ER -