EM.P.4.01 Collagen VI related myopathies: Exploring the phenotypic spectrum - Foley, A.R.; Columbus, A.; Schlessl, J.; Hu, Y.; Zou, Y.; Iannaccone, S.; Mathews, K.; Connolly, A.; Wong, B.; Kaufmann, P.; Scavina, M.; Flanigan, K.; et al. (Neuromuscular Disorders, 2009)