Towards Text Processing Pipelines to Identify Adverse Drug Events-related Tweets: University of Michigan @ SMM4H 2019 Task 1. - V. G. Vinod Vydiswaran; Grace Ganzel; Bryan Romas; Deahan Yu; Amy Austin; Neha Bhomia; Socheatha Chan; Stephanie Hall; Van Le; Aaron Miller; Olawunmi Oduyebo; Aulia Song; et al. (SMM4H@ACL, 2019)