共 18 条
[6]
GREENLAND S, 1975, AM J EPIDEMIOL, V102, P267
[9]
INTRODUCTION TO SAMPLE-SIZE DETERMINATION AND POWER ANALYSIS FOR CLINICAL-TRIALS
[J].
CONTROLLED CLINICAL TRIALS,
1981, 2 (02)
:93-113
[10]
McCullagh P., 1983, GEN LINEAR MODELS