"I have now used Comprehensive Meta‐Analysis in five meta‐analyses and highly recommend it. Its structure and accompanying resources particularly assist researchers with clinical rather than statistical backgrounds to avoid important errors in data entry and analysis. Comprehensive Meta‐Analysis enables meta‐analysis methods recommended by leading statisticians and meta‐analysts to be used by researchers internationally."

Dr. Catherine Sherrington - Senior Research Fellow, The George Institute for Global Health, The University of Sydney, Australia

"We had no knowledge on meta‐analyses and were somewhat confused by the number of programs available. Most of them were not easy to use, not insightful and required a priori knowledge of metaanalyses statistics. There was one exception: Comprehensive Meta‐analysis. We downloaded the software and went through the easy‐to‐use tutorial. Within an hour we were performing our own metaanalysis! Our analysis was verified by our statistical department with excellent results, giving us further confidence to continue our analysis and resulting in an excellent paper in the top journal on pain research: Niesters et al., Do Sex Differences Exist in Opioid Analgesia? A Systematic Review and Meta‐ Analysis of Human Experimental and Clinical Studies. Pain, 2010, in press, doi:10.1016/j.pain.2010.06.012."

Albert Dahan, MD, PhD & Marieke Niesters, MD, MSc - Department of Anesthesiology, Leiden University Medical Center, Leiden, The Netherlands