citHeader("To cite the R package 'YPmodel' in publications use:")  

citEntry(entry   = "Article",
         title   = "Estimation of the 2-sample hazard ratio function using a semiparametric model",
         journal = "Biostatistics",
         volume  = "12",
         number  = "2",
         year    = "2011",
         author  = personList(
           person(given="Song", family="YANG"),
           person(given="ROSS L.", family="Prentice")
           ),
         textVersion = "YANG, S. AND PRENTICE, R. L. (2011). Estimation of the 2-sample hazard ratio function using a semiparametric model. Biostatistics 12, 354-368."
         )

citEntry(entry   = "Article",
         title   = "Improved Logrank-Type Tests for Survival Data Using Adaptive Weights",
         journal = "Biometrics",
         volume  = "66",
         number  = "1",
         year    = "2010",
         author  = personList(
           person(given="Song", family="YANG"),
           person(given="ROSS L.", family="Prentice")
          ),
         textVersion = "YANG, S. AND PRENTICE, R. L. (2010). Improved Logrank-Type Tests for Survival Data Using Adaptive Weights. Biometrics 66, 30-38."
         )

citEntry(entry   = "Article",
         title   = "Semiparametric analysis of short-term and long-term hazard ratios with two-sample survival data",
         journal = "Biometrika",
         volume  = "92",
         number  = "1",
         year    = "2005",
         author  = personList(
           person(given="Song", family="YANG"),
           person(given="ROSS L.", family="Prentice")
           ),
         textVersion = "YANG, S. AND PRENTICE, R. L. (2005). Semiparametric analysis of short-term and long-term hazard ratios with two-sample survival data. Biometrika 92, 1-17."
         )
citEntry(entry   = "Article",
         title   = "Checking the Short-Term and Long-Term Hazard Ratio Model for Survival Data",
         journal = "Scandinavian Journal of Statistics",
         year    = "2012",
         author  = personList(
           person(given="Song", family="YANG"),
           person(given="Yichuan", family="ZHAO")
           ),
         textVersion = "YANG, S. AND ZHAO, Y. (2012). Checking the Short-Term and Long-Term Hazard Ratio Model for Survival Data. Scandinavian Journal of Statistics."
         )
citEntry(entry   = "Article",
         title   = "A comparison of combination chemotherapy and combined modality therapy for locally advanced gastric carcinoma",
         journal = "Cancer",
         year    = "1982",
         author  = personList(
           person("GASTROINTESTINAL TUMOR STUDY GROUP")
           ),
         textVersion = "GASTROINTESTINAL TUMOR STUDY GROUP (1982). A comparison of combination chemotherapy and combined modality therapy for locally advanced gastric carcinoma. Cancer."
         )