Publisher's note

Within the publishing industry, article numbering has emerged as an easy and efficient way to cite journal articles. Article numbering has already been successfully rolled out to Elsevier's multidisciplinary open access journal Heliyon, as well as more than 1600 other journals, and has been well received by the academic community. Based on that positive feedback, we are now pleased to introduce article numbering to the European Journal of Internal Medicine from the 29th of July.