Reference:
  Author: Jose C. Pinheiro and Björn Bornkamp and Frank Bretz
  Title: Design and Analysis of Dose-Finding Studies Combining Multiple Comparisons
    and Modeling Procedures
  Journal: Journal of Biopharmaceutical Statistics
  Year: 2006
  Volume: 16
  Number: 5
  Pages: 639-656
  DOI: 10.1080/10543400600860428
  PMID: 17037263
  URL: http://www.tandfonline.com/doi/abs/10.1080/10543400600860428
Archive: CRAN
