title: Underpowered clinical trials: time for a change.
authors.affiliation: Maastricht University Medical Centre, Department of Anesthesiology and Pain Management, Mail Box 5800, 6202 AZ Maastricht, The Netherlands Maastricht University Medical Centre, Department of Clinical Epidemiology and Medical, Technology Assessment, The Netherlands.
authors.forename: Maarten
authors.initials: M
authors.lastname: van Kleef
authors.forename: Alfons G H
authors.initials: AGH
authors.lastname: Kessels
mesh_terms: D004311:Double-Blind Method; D006801:Humans; D017116:Low Back Pain / Q000628:therapy; D017063:Outcome Assessment, Health Care; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D018401:Sample Size; D013997:Time Factors
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