title: Are surrogate endpoints useful in clinical studies?
authors.forename: Cecilie Delphin
authors.initials: CD
authors.lastname: Amdal
authors.forename: Kristin
authors.initials: K
authors.lastname: Bjordal
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000379:methods; D011788:Quality of Life; D012107:Research Design