McGauran N, Wieseler B, Kreis J, et al. Reporting bias in medical research - a narrative review. Trials 2010;11:37. http://www.trialsjournal.com/content/11/1/37
Reporting bias is widespread in the medical literature. Prospective registration of trials and public access to data need to be introduced worldwide, allowing an independent review of research data and ensuring that ethical obligations are met and providing a basis for fully-informed decision making.