S499 Elevations in Breath Methane Are Associated With Lower Heart Rate: Post-Hoc Analysis of a Double Blind Randomized Control Trial. (October 2021) - Takakura, Will; Chang, Christine; Mo, Gina N.; Hosseini, Ava; Rashid, Mohamad; Torosyan, John; Chang, Bianca; Pichetshote, Nipaporn; Mathur, Ruchi; Pimentel, Mark; Rezaie, Ali