Methods of Information in Medicine is a peer-reviewed scientific journal covering research in medical informatics.

[6] In 2015 the journal did not receive an impact factor as it was delisted because of citation stacking.

[9] The editors of Methods of Information in Medicine and the other journal involved, Applied Clinical Informatics published a rebuttal in an editorial in both journals.

[10][11] The president and publication officer of the European Federation for Medical Informatics also commented on this matter.

[12] Phil Davis visualized the citation cartel pointing out that Lehmann and Haux (the editors of the two journals) produced a total of 4 papers in 2014 and 2015 that excessively cited each other's journal articles for the impact-factor relevant years.