The effects of a graded activity intervention for low back pain in occupational health on sick leave, functional status and pain: 12-month results of a randomized controlled trial.
J Occup Rehabil. 2005 Dec;15(4):569-80. doi: 10.1007/s10926-005-8035-y.
J Occup Rehabil. 2005.
PMID: 16254756
Clinical Trial.