Boeckxstaens G, Elsen S, Belmans A, Annese V, Bredenoord AJ, Busch OR, Costantini M, Fumagalli U, Smout AJPM, Tack J, Vanuytsel T, Zaninotto G, Salvador R

Low EE, Demb J, Shah SC, Liu L, Bustamante R, Yadlapati R, Gupta S

Shiha MG, Nandi N, Raju SA, Wild G, Cross SS, Singh P, Elli L, Makharia GK, Sanders DS, Penny HA

Zhuang Q, Chen S, Zhou X, Jia X, Zhang M, Tan N, Chen F, Zhang Z, Hu J, Xiao Y

Yan TL, Wang JH, He XJ, Zhu YB, Lu LJ, Wang YJ, Wang ZW, Gao JG, Xu CF, Ma H, Luan SM, Li L, Chen Y

Bujanda L, Nyssen OP, Ramos J, Bordin DS, Tepes B, Perez-Aisa A, Pavoni M, Castro-Fernandez M, Lerang F, Leja M, Rodrigo L, Rokkas T, Kupcinskas J, Jonaitis L, Shvets O, Gasbarrini A, Simsek H, Phull PS, Buzás GM, Machado JC, Boltin D, Boyanova L, Tonkić A, Marlicz W, Venerito M, Vologzanina L, Fadieienko GD, Fiorini G, Resina E, Muñoz R, Cano-Català A, Puig I, García-Morales N, Hernández L, Moreira L, Megraud F, O’Morain C, Montes M, Gisbert JP; Hp-EuReg investigators

Chen YC, Malfertheiner P, Yu HT, Kuo CL, Chang YY, Meng FT, Wu YX, Hsiao JL, Chen MJ, Lin KP, Wu CY, Lin JT, O’Morain C, Megraud F, Lee WC, El-Omar EM, Wu MS, Liou JM

Kurlander JE, Laine L, Kim HM, Roberts CB, Saffar D, Myers A, Holleman R, Gao Y, Shank M, Nelson R, Forman J, Helfrich CD, Krein SL, Saini SD, Yang YX

Miceli E, Lenti MV, Gentile A, Gambini G, Petrucci C, Pitotti L, Mengoli C, Di Stefano M, Vanoli A, Luinetti O, Brondino N, Paulli M, Anderloni A, Klersy C, Corazza GR, Di Sabatino A