Figure 2

Chronologic changes in the submucosal cushion heights after injection. (a) Cushion heights in mm. (b) Cushion height ratio compared with the reference point (height at 5 min after injection).

Chronologic changes in the submucosal cushion heights after injection. (a) Cushion heights in mm. (b) Cushion height ratio compared with the reference point (height at 5 min after injection).