共 33 条
[22]
MORGANTE L, 1992, NEUROLOGY, V42, P1901
[23]
Norusis M. J., 1994, SPSS advanced statistics 6.1
[28]
SHAW KM, 1980, Q J MED, V49, P283
[29]
TANNER CM, 1991, NEUROEPIDEMIOLOGY TR, P193