Pre-treatment patient selection for nivolumab benefit based on serum mass spectra ================================================================================= * Jeffrey Weber * Alberto J Martinez * Heinrich Roder * Joanna Roder * Krista Meyer * Senait Asmellash * Julia Grigorieva * Maxim Tsypin * Carlos Oliveira * Arni Steingrimsson * Kevin Sayers * Antonella Bacchiocchi * Mario Sznol * Ruth Halaban * Harriet Kluger