1. Begg, C.B. (1994). Publication bias. In H. Cooper & L. V. Hedges (Eds.), The handbook of research synthesis (pp. 399-409). New York: Russell Sage Foundation.
2. Improving the Quality of Reporting of Randomized Controlled Trials
3. Boruch, R., Petrosino, A. & Chalmers, I. (1999). The Campbell collaboration: A proposal for systematic, multinational, and continuous reviews of evidence. In P. Davis, A. Petrosino, & I. Chalmers (Eds.), The effects of social and educational interventions: Developing an infrastructure for international collaboration to prepare, maintain and promote the accessibility of systematic reviews of relevant research (pp. 1-22). London: London University College, London School of Public Policy.
4. Towards complete and accurate reporting of studies of diagnostic accuracy: the STARD initiative