I’ve found a similar article with the actual picture, but there they’ve tested bridge posture, effect should be similar I think.. will definitely try it out (been suffering from severe GERD since last year after swallowing a piece of nut and after the endoscopy, maybe they’ve also taken too much material for the biopsy)

Article: https://www.jstage.jst.go.jp/article/prm/7/0/7_20220054/_htm...