We, the Editors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article: Gang Wang, Ping Wang, Xiaojun Yan & Jing Liu (2019) Neferine hinders choriocarcinoma cell proliferation, migration and invasion through repression of long noncoding RNA-CHRF, Artificial Cells, Nanomedicine, and Biotechnology, 47:1, 4089–4096, DOI: 10.1080/21691401.2019.1671429 Since publication, concerns have been raised about the integrity of the data in the article. When approached for an explanation, the authors have been...