TY - JOUR AU - Niehues, T; Horneff, G; Michels, H TI - Evidence-based use of methotrexate in children with rheumatic disorders. Consensus statement of the Working Group for Children and Adolescents with Rheumatic Diseases in Germany (AGKJR) and the Working Group Pediatric Rheumatology Austria JO - Z Rheumatol VL - 63 PY - 2004 DO - 10.1007/s00393-004-0534-2 SP - 147 EP - 158 N1 - et al. ER -