Jiawei Zhou 0002 Rosa I. Arriaga Hongfang Liu Ming Huang 0006 A Tale of Two Perspectives: Harvesting System Views and User Views to Understand Patient Portal Engagement. 373-383 2022 ICHI https://doi.org/10.1109/ICHI54592.2022.00059 conf/ichi/2022 db/conf/ichi/ichi2022.html#ZhouALH22