共 7 条
[2]
LINDEN W, 1970, AM J SURG, V120, P7
[4]
SCHERSTEN T, 1975, AKTUELLE PROBLEME KL, P99
[6]
Siegel S., 1956, NONPARAMETRIC STAT B
[7]
WENCKERT A, 1969, ACTA CHIR SCAND, V135, P701