EndoFLIP® in Comparison to High‐Resolution Manometry and Eckardt Score in the Assessment of Achalasia and Response to Intervention: Presidential Poster: 1638. (October 2015) - McCoy, Erin; Snape, William; Agarwal, Nikhil; Lin, Mimi S.; Jossart, Gregg; Binmoeller, Kenneth; Gray, Shelly; Shaw, Richard