TY - JOUR AU - Heikius, B; Niemelä, S; Lehtola, J TI - Elevated pancreatic enzymes in inflammatory bowel disease are associated with extensive disease JO - Am J Gastroenterol VL - 94 PY - 1999 DO - 10.1111/j.1572-0241.1999.01015.x SP - 1062 EP - 1069 N1 - et al. ER -