Before revision:  To overcome this limitation in this work we  used Scanning micro X-ray Diffraction (S{\mu}XRD) , which is a unique non-invasive probe of both k-space and real space allowing to visualize statistical fluctuations of myelin order with high spatial resolution in real space.
After revision:  To overcome this limitation in this work we have used Scanning micro X-ray Diffraction (S{\mu}XRD) , which is a unique non-invasive probe of both k-space and real space allowing to visualize statistical fluctuations of myelin order with high spatial resolution in real space.