Individualised cognitive functional therapy compared with a combined exercise and pain education class for patients with non-specific chronic low back pain: A multicentre randomised controlled trial. (September 2016) - O'Keeffe, M.; Purtill, H.; Kennedy, N.; O'Sullivan, P.; Dankaerts, W.; Tighe, A.; Allworthy, L.; Dolan, L.; Bargary, N.; O'Sullivan, K.