共 25 条
[3]
Desu MM, 1990, SAMPLE SIZE METHODOL, P30
[4]
DOBBIN K, 2001, 04 NATL CANC I BIOM
[9]
Sample-size calculations for the Cox proportional hazards regression model with nonbinary covariates
[J].
CONTROLLED CLINICAL TRIALS,
2000, 21 (06)
:552-560