title: Discussion of "A risk-based measure of time-varying prognostic discrimination for survival models," by C. Jason Liang and Patrick J. Heagerty.
authors.affiliation: Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark.
authors.forename: Thomas Alexander
authors.initials: TA
authors.lastname: Gerds
authors.affiliation: Institute for Medical Biometry and Statistics, Medical Center, University of Freiburg, Freiburg, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Schumacher
mesh_terms: D006801:Humans; D015233:Models, Statistical; D011379:Prognosis; D012306:Risk