Peng, J. ., Fabre, P. ., Dolique, T. ., Swikert, S. ., Kermasson, L. ., Shimogori, T. ., & Charron, F. . (2018). Sonic Hedgehog Is a Remotely Produced Cue that Controls Axon Guidance Trans-axonally at a Midline Choice Point. Neuron, 97(2), 326-340.e4. https://doi.org/10.1016/j.neuron.2017.12.028 (Original work published 2018)