title: Response to both letters.
authors.affiliation: Weill Medical College of Cornell University, New York, NY, USA.
authors.forename: Bradley A
authors.initials: BA
authors.lastname: Connor
authors.forename: Mark S
authors.initials: MS
authors.lastname: Riddle
mesh_terms: D016918:Arthritis, Reactive; D003967:Diarrhea; D020275:Guillain-Barre Syndrome; D006801:Humans; D043183:Irritable Bowel Syndrome; D014195:Travel