A combinatorial semaphorin code instructs the initial steps of sensory circuit assembly in the Drosophila CNS
Z. Wu, L.B. Sweeney, J.C. Ayoob, K. Chak, B.J. Andreone, T. Ohyama, R. Kerr, L. Luo, M. Zlatic, A.L. Kolodkin, Neuron 70 (2011) 281–298.