"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

"Your software is very convenient and useful for systematic reviewers. I used this software to conduct Cochrane systematic review and also helped several postgraduates at University of Ottawa for their research on environmental toxicology and epidemiology. Their manuscripts were all accepted by the internal peer‐reviewed journals."

Senior Epidemiologist - Blood Safety Surveillance and Health Care, Acquired Infection Division Centre for Communicable Disease and Infection Control, Public Health Agency of Canada, Ottawa, ON