Publisher Biomed Central has been forced to retract a large number of papers due to abuses of the "peer review" system. From the Washington Post: Major Publisher Retracts 43 Scientific Papers Amid Wider Fake Peer Review Scandal The system of "peer review" is supposed to ensure the quality of scientific papers. In fact the system rejects unconventional theories while allowing papers that are mediocre or completely false. Many, many more scientific papers are published full of questionable research. This scandal is barely the tip of an iceberg. Scientific research has become broken.