On the Comparison of Procedures for Testing the Equality of Survival Curves
本文指出Lininger等人关于小样本中部分似然比检验不如Mantel-Haenszel检验的结论，源于其模型需估计多余参数；改用无需估计的模型后，常用检验在小样本中表现相似。
Lininger et al. (1979) conclude that, in small samples, a partial likelihood ratio statistict to test the equality of survival curves is not so appropriate as a Mantel–Haenszel statistic. Their results are shown to arise due to the use of a model which requires the estimation of nuisance parameters. An alternative model, which does not require such estimation, is considered. When this model is used, commonly employed tests perform similarly in small samples.