Entropy – select insights from the Healthcare Social GraphTweet Publicly self-identifying Patient Advocate accounts participating on Twitter during the American Society of Clinical Oncology Annual Meeting. Data from the Healthcare Social Graph® – Symplur. 2015-2019. Analyze the Data in Symplur Signals 2019 2018 2017 2016 2015 Declining Patient Engagement at ASCO 2019SymplurJune 7, 2019