%0 Journal Article %T Expression of Concern: Neferine hinders choriocarcinoma cell proliferation, migration and invasion through repression of long noncoding RNA-CHRF %J Artificial Cells, Nanomedicine, and Biotechnology %D 2020 %R https://doi.org/10.1080/21691401.2020.1741848 %U https://www.tandfonline.com/doi/full/10.1080/21691401.2020.1741848