RETRACTION - In Vitro Derivation of Human Sperm from Embryonic Stem Cells.
Nayernia K., Lee JH., Lako M., Armstrong L., Herbert M., Li M., Engel W., Elliott D., Stojkovic M., Parrington J., Murdoch A., Strachan T., Zhang X.
This article, "In Vitro Derivation of Human Sperm from Embryonic Stem Cells," is being retracted from Stem Cells and Development. Further details will follow online, and in a subsequent issue of the Journal.