Comment on: Systematic review of the introduction and evaluation of magnetic augmentation of the lower oesophageal sphincter for gastro‐oesophageal reflux disease. Issue 7 (22nd April 2020) - Bonavina, L.; Boyle, N.; Dunn, C.; Horbach, T.; Knowles, T. B.; Lipham, J. C.; Louie, B. E.; Markar, S.; Schppmann, S. F.; Zehetner, J.