Withdrawal: “Megakaryocytes Enhance Mesenchymal Stromal Cells Proliferation and Inhibit Differentiation”, by Arbi M. Emmakah, Hussain E. Arman, Marta B. Alvarez, Paul J. Childress, Joseph P. Bidwell, William S. Goebel, Tien‐Min Gabriel Chu, and Melissa A. Kacena, J Cell Biochem. The above article, published as accepted article online on 19 July 2017 in Wiley Online Library (https://onlinelibrary.wiley.com/doi/10.1002/jcb.30177) has been withdrawn by agreement between authors, the journal's Editor in Chief, Prof. Dr. Christian Behl, and Wiley Periodicals LLC.The withdrawal has been agreed because final approval for the publication of the article could not be received from the authors.