bibentry(
  bibtype = "Unpublished",
  key     = "varadhan2026hps",
  title   = paste("Hierarchical Pairwise Scoring: A Regression Framework",
                  "for Composite Outcomes, with Application to Hematopoietic",
                  "Stem Cell Transplantation"),
  author  = person("Ravi", "Varadhan"),
  year    = "2026",
  note    = "Manuscript in preparation"
)
