I have published a research article in 2017, and I am the only author for it. Recently, I found out that two co-authors were added to the same publication after being published
I am still the only author for this article in some sites, but two authors were added in other sites. How could this possibly happen? and how can I correct this mistake?
Article Healthcare Professionals' Attitudes and Practices in Support...
https://www.ingentaconnect.com/content/wk/anc/2017/00000017/00000005/art00014