Expression of Concern: Palazuelos et al., “TGFβ Signaling Regulates the Timing of CNS Myelination by Modulating Oligodendrocyte
Progenitor Cell Cycle Exit through SMAD3/4/FoxO1/Sp1”
The Journal of Neuroscience, 11 August 2021, 41(32):6967; published ahead of print July 29, 2021, doi:10.1523/JNEUROSCI.0610-21.2021