Long term Outcomes of PerOral Endoscopic Myotomy (POEM) in Achalasia patients With a minimum follow-up of 2 years: A multicenter study

Ngamruengphong, S; Inoue, H; Bapaye, A; Ujiki, M; Patel, Ly; Desai, Pn; Hayee, B; Haji, A; Wong, V; Perretta, S; Dorwat, S; Pioche, M; Roman, S; Rivory, J; Mion, F; Ponchon, T; Garros, A; Nakamura, J; Hata, Y; Balassone, V; Onimaru, M; Hajiyeva, G; Ismail, A; Chen, Yi; Bukhari, M; Chavez, Yh; Kumbhari, V; Maselli, R; Repici, A; Khashab, Ma