title: Prospective cohort study: Serious pathology in people presenting to primary care with acute low back pain is rare (0.9%), but high false-positive rates for some 'red flags' may limit their diagnostic value.
authors.affiliation: Cleveland Clinic, Lerner College of Medicine, and Spine Surgery Fellowship Program, Cleveland Clinic Center for Spine Health, 9500 Euclid Avenue, Desk S-40, Cleveland Clinic Foundation, Cleveland, OH 44195, USA. mclainr@ccf.org
authors.forename: Robert F
authors.initials: RF
authors.lastname: McLain