title: On the need for objective measures of risk of bias.
authors: Biometry Research Group, National Cancer Institute, UMBC, Executive Plaza North, Suite 3131, 6130 Executive Boulevard, MSC 7354, Bethesda, MD 20892-7354, United States. Electronic address: vb78c@nih.gov.
authors: Vance W
authors: VW
authors: Berger
authors: SYSTEM Initiative, Department of Community Dentistry, Faculty of Health Science, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa. Electronic address: neem@global.co.za.
authors: Steffen
authors: S
authors: Mickenautsch
mesh_terms: D015982:Bias; D004311:Double-Blind Method; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012306:Risk; D018570:Risk Assessment; D016037:Single-Blind Method
keywords: Objective measures; Randomized trials; Risk of bias