Discussant - Phase Ia/Ib dose-escalation study of the anti-TIGIT  tiragolumab as a single agent and in combination with atezolizumab in advanced solid tumors - Michele Teng #AACR20 $RHHBY $MRK $RCUS $MREO $SGEN 1/x https://t.co/eMuGg6Yj1Y