共 19 条
[3]
ELLISON GW, 1988, NEUROLOGY, V38, P20
[4]
GOODKIN DE, 1988, ARCH PHYS MED REHAB, V69, P850
[10]
KURTZKE JF, 1983, NEUROLOGY, V33, P1444, DOI 10.1212/WNL.33.11.1444