RETRACTED: High-level expression and purification of recombinant huGM-CSF (9-127)/IL-6 (29-184) fusion protein in Escherichia coil

The article was published previously in substantially identical form in another journal prior to appearing in Protein Expression and Purification. The authors deeply regret this duplication and wish to withdraw the article from publication. The article was published previously in Sheng Wu Gong Cheng Xue Bao [Refolding and purification of the huGM-CSF(9-127)-IL-6(29-184) fusion protein, Sun QM, Liu HY, Dai CB, Ma YB, Sun MS, Xu WM. Sheng Wu Gong Cheng Xue Bao (Chinese Journal of Biotechnology) 2002 May;18(3):291-294]. Chinese. PMID: 12192859.