Editorial: the diminishing returns of normalisation of the oesophageal mucosa―Authors' reply. Issue 1 (July 2017) - Mastracci, L.; Fiocca, R.; Engstrom, C.; Attwood, S.; Ell, C.; Galmiche, J. P.; Hatlebakk, J. G.; Långström, G.; Eklund, S.; Lind, T.; Lundell, L.