title: Acute lumbar strain: clinical signs and prognosis.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D001416:Back Pain / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012017:Referral and Consultation; D013124:Spinal Injuries / Q000150:complications