title: Comment on "Clinical studies in spinal surgery" (B. Hanson and B. Kopjar).
authors.affiliation: Department of Orthopaedics, Falun Hospital, 79182, Falun, Sweden. peter.fritzell@ltdalarna.se
authors.forename: Peter
authors.initials: P
authors.lastname: Fritzell
mesh_terms: D035843:Biomedical Research / Q000592:standards*; D002986:Clinical Trials as Topic / Q000592:standards*; D019317:Evidence-Based Medicine; D006801:Humans; D009985:Orthopedics; D016032:Randomized Controlled Trials as Topic; D013131:Spine / Q000601:surgery*