Respiratory and upper limb function as outcome measures in ambulant and non-ambulant subjects with Duchenne muscular dystrophy: A prospective multicentre study 由 Ricotti, V, Selby, V, Ridout, D, Domingos, J, Decostre, V, Mayhew, A, Eagle, M, Butler, J, Guglieri, M, der Holst, MV, Jansen, M, Verschuuren, JJGM, de Groot, IJM, Niks, EH, Servais, L, Straub, V, Voit, T, Hogrel, JY, Muntoni, F