@article{article642e063b,
title   = {Effectiveness of graded activity versus physiotherapy in patients with chronic nonspecific low back pain: midterm follow up results of a randomized controlled trial},
author = {Magalhaes, Mauricio Oliveira and Marques, Amelia Pasqual},
year = {2018},
doi = {10.1016/j.bjpt.7017.07.002},
journal   = {Brazilian journal of physical therapy}
}