TY - JOUR AU - Maher, C G TI - Effective physical treatment for chronic low back pain JO - Orthop Clin North Am VL - 35 (1) PY - 2004 DO - 10.1016/S0030-5898(03)00088-9 L3 - PubMed-ID: 15062718 SP - 57 EP - 64 ER -