All issues relating to published articles should be reported by email, es@gzzoc.com. When a corresponding author reports an error in their published article it can usually be corrected by publishing an Erratum and making changes to the article. When the change is straightforward (e.g. misspelling of an author name, correction of grant information, etc.) it may be done by journal staff. When a change requested by an author is more significant (especially when related to the science) it will be brought to the attention of the Editor-in-Chief (EIC) who will oversee the correction process. Significant issues in a published article that require correction may also be reported by a reader (who is not an author of the article) to the editorial office. These will always be considered first by the EIC, and the authors of the article will be contacted before a final decision about a correction is made by the EIC. (The identity of the person reporting the issue will not be shared with the authors of the article) In rare cases, when the validity of the article is sufficiently compromised, a Retraction will be considered. Letters to the Editor (as described above) will also be considered as a way of expressing alternative points of view that are of significant scientific interest to the community served by the journal. Clear significant errors in articles, no matter how they are reported, are usually better corrected by publishing Errata and making changes to the articles.