中国科学院数学与系统科学研究院期刊网
Analyzing Left-truncated and Right-censored Data under Cox Models with Long-term Survivors
Fei-peng ZHANG, Yong ZHOU
Acta Mathematicae Applicatae Sinica(English Series) . 2013, (2): 241 -252 .  DOI: 10.1007/s10255-013-0215-5