title: Rationale for classification of flexion vs extension strain in acute low back pain.
authors.affiliation: Spine Diagnostic and Treatment Center, University of Iowa Hospital and Clinics, Iowa City 52242-1009, USA.
authors.forename: D
authors.initials: D
authors.lastname: Bewyer
mesh_terms: D000208:Acute Disease; D005081:Exercise Therapy; D006801:Humans; D017116:Low Back Pain / Q000503:physiopathology* / Q000628:therapy