Heparan sulfate proteoglycans are ligands for receptor protein tyrosine phosphatase sigma. by Aricescu, A, McKinnell, I, Halfter, W, Stoker, A

Chick PTPsigma regulates the targeting of retinal axons within the optic tectum. by Rashid-Doubell, F, McKinnell, I, Aricescu, A, Sajnani, G, Stoker, A