S3236 Symptom Recurrence After a Cooperative Approach to Zenker's Diverticulum. (October 2020) - Castaneda, Daniel; Azar, Francisco Franco; Pimentel, Ronnie R.; FACG,; Alemar, Gilberto; Hrelec, Candace; Ponsky, Jeffrey; Erim, Tolga; Lara, Luis L.