Cambrian origin of the CYP27C1-mediated vitamin A1-to-A2 switch, a key mechanism of vertebrate sensory plasticity - Morshedian, Ala; Toomery, Matthew; Pollock, Gabriel; Frederiksen, Rikard; Enright, Jennifer; McCormick, Stephen; Cornwall, M.; Fain, Gordon; Corbo, Joseph (Royal Society Open Science, 2017)