Published online May 26, 2013. doi: 10.13105/wjma.v1.i1.5
Revised: April 3, 2013
Accepted: April 9, 2013
Published online: May 26, 2013
Core tip: Besides their role in evaluating efficacy and tolerability of drugs, meta-analyses may be used to assess diagnostic values of debatable clinical findings, as they represent powerful tools to try to answer questions not posed by individual studies and to settle controversies arising from conflicting claims.