The Strength of Association Between Surrogate End Points and Survival in Oncology: A Systematic Review of Trial-Level Meta-analyses
JAMA Internal Medicine (2015) - Comments
pubmed: 26098871  doi: 10.1001/jamainternmed.2015.2829  issn: 2168-6114  issn: 2168-6106 

Vinay Prasad, Chul Kim, Mauricio Burotto, Andrae Vandross