citation_expert <- citHeader("To cite expertsurv in publications use:")
bibentry(
     bibtype = "Manual",
     title = "expertsurv: Incorporate Expert Opinion with Parametric Survival Models",
     author = c(
        person("Philip", "Cooney", email = "phcooney@tcd.ie",
        role = c("aut", "cre")),
        person("Arthur", "White", email = "arwhite@tcd.ie",
        role = c("ths"))),
     year = "2023",
     note = "R package version 1.3.0",
#     url = "https://CRAN.R-project.org/package=expertsurv",
     key = "expertsurv-package"
   )
   
bibentry(bibtype = "Article",
         title        = "Direct Incorporation of Expert Opinion into Parametric Survival Models to Inform Survival Extrapolation",
        author = c(
        person("Philip", "Cooney", email = "phcooney@tcd.ie",
        role = c("aut", "cre")),
        person("Arthur", "White", email = "arwhite@tcd.ie",
        role = c("ths"))),
         journal      = "Medical Decision Making",
         year         = "2023",
         pages        = "1--12",
         url          = "https://journals.sagepub.com/doi/epub/10.1177/0272989X221150212",
         
         textVersion  =
           paste("Philp Cooney, Arthur White (2023).",
                 "Direct Incorporation of Expert Opinion into Parametric Survival Models to Inform Survival Extrapolation",
                 "Medical Decision Making, 1-12.",
                 "URL https://journals.sagepub.com/doi/epub/10.1177/0272989X221150212")
)