TY - JOUR AU - Tiedemann Anne AU - Paeck T. AU - Sun C. AU - Lin C AU - Maher C. AU - Ferreira Manuela BT - Arthritis Care and Research ET - 10 December 2013 [Epub ahead of print] LA - eng PY - 2013 T2 - Arthritis Care and Research TI - Are older adults missing from low back pain clinical trials? – A systematic review and meta-analysis ER -